Home / 23,078.76-31,827.78-15,118.08

Finding the Fourth Proportional to 23,078.76, 31,827.78 and 15,118.08

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Solution

The fourth proportional to 23,078.76, 31,827.78 and 15,118.08 is: 20,849.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,078.76 : 31,827.78 = 15,118.08 : x
  2. Step 2: Convert to fraction form
    23,078.76/31,827.78 = 15,118.08/x
  3. Step 3: Cross multiply
    23,078.76x = 31,827.78 × 15,118.08
  4. Step 4: Simplify right side
    23,078.76x = 481,174,924.26
  5. Step 5: Solve for x
    x = 481,174,924.26/23,078.76
  6. Step 6: Final answer
    x = 20,849.25

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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.