Home / 27,920.06-41,880.12-13,118.12

Finding the Fourth Proportional to 27,920.06, 41,880.12 and 13,118.12

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Solution

The fourth proportional to 27,920.06, 41,880.12 and 13,118.12 is: 19,677.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.06 : 41,880.12 = 13,118.12 : x
  2. Step 2: Convert to fraction form
    27,920.06/41,880.12 = 13,118.12/x
  3. Step 3: Cross multiply
    27,920.06x = 41,880.12 × 13,118.12
  4. Step 4: Simplify right side
    27,920.06x = 549,388,439.77
  5. Step 5: Solve for x
    x = 549,388,439.77/27,920.06
  6. Step 6: Final answer
    x = 19,677.19

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.