Home / 27,960.06-38,587.61-20,874.18

Finding the Fourth Proportional to 27,960.06, 38,587.61 and 20,874.18

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Solution

The fourth proportional to 27,960.06, 38,587.61 and 20,874.18 is: 28,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.06 : 38,587.61 = 20,874.18 : x
  2. Step 2: Convert to fraction form
    27,960.06/38,587.61 = 20,874.18/x
  3. Step 3: Cross multiply
    27,960.06x = 38,587.61 × 20,874.18
  4. Step 4: Simplify right side
    27,960.06x = 805,484,716.91
  5. Step 5: Solve for x
    x = 805,484,716.91/27,960.06
  6. Step 6: Final answer
    x = 28,808.40

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.