Home / 22,686.14-31,299.38-13,730.24

Finding the Fourth Proportional to 22,686.14, 31,299.38 and 13,730.24

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Solution

The fourth proportional to 22,686.14, 31,299.38 and 13,730.24 is: 18,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,686.14 : 31,299.38 = 13,730.24 : x
  2. Step 2: Convert to fraction form
    22,686.14/31,299.38 = 13,730.24/x
  3. Step 3: Cross multiply
    22,686.14x = 31,299.38 × 13,730.24
  4. Step 4: Simplify right side
    22,686.14x = 429,747,999.25
  5. Step 5: Solve for x
    x = 429,747,999.25/22,686.14
  6. Step 6: Final answer
    x = 18,943.20

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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.