Home / 22,681.14-31,329.90-18,916.62

Finding the Fourth Proportional to 22,681.14, 31,329.90 and 18,916.62

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Solution

The fourth proportional to 22,681.14, 31,329.90 and 18,916.62 is: 26,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,681.14 : 31,329.90 = 18,916.62 : x
  2. Step 2: Convert to fraction form
    22,681.14/31,329.90 = 18,916.62/x
  3. Step 3: Cross multiply
    22,681.14x = 31,329.90 × 18,916.62
  4. Step 4: Simplify right side
    22,681.14x = 592,655,812.94
  5. Step 5: Solve for x
    x = 592,655,812.94/22,681.14
  6. Step 6: Final answer
    x = 26,129.90

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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.