Home / 22,537.38-31,088.40-13,579.20

Finding the Fourth Proportional to 22,537.38, 31,088.40 and 13,579.20

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Solution

The fourth proportional to 22,537.38, 31,088.40 and 13,579.20 is: 18,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,537.38 : 31,088.40 = 13,579.20 : x
  2. Step 2: Convert to fraction form
    22,537.38/31,088.40 = 13,579.20/x
  3. Step 3: Cross multiply
    22,537.38x = 31,088.40 × 13,579.20
  4. Step 4: Simplify right side
    22,537.38x = 422,155,601.28
  5. Step 5: Solve for x
    x = 422,155,601.28/22,537.38
  6. Step 6: Final answer
    x = 18,731.35

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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.