Home / 22,489.92-31,030.56-13,988.16

Finding the Fourth Proportional to 22,489.92, 31,030.56 and 13,988.16

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Solution

The fourth proportional to 22,489.92, 31,030.56 and 13,988.16 is: 19,300.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,489.92 : 31,030.56 = 13,988.16 : x
  2. Step 2: Convert to fraction form
    22,489.92/31,030.56 = 13,988.16/x
  3. Step 3: Cross multiply
    22,489.92x = 31,030.56 × 13,988.16
  4. Step 4: Simplify right side
    22,489.92x = 434,060,438.17
  5. Step 5: Solve for x
    x = 434,060,438.17/22,489.92
  6. Step 6: Final answer
    x = 19,300.22

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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.