Home / 22,301.52-30,780.18-15,225.36

Finding the Fourth Proportional to 22,301.52, 30,780.18 and 15,225.36

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Solution

The fourth proportional to 22,301.52, 30,780.18 and 15,225.36 is: 21,013.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,301.52 : 30,780.18 = 15,225.36 : x
  2. Step 2: Convert to fraction form
    22,301.52/30,780.18 = 15,225.36/x
  3. Step 3: Cross multiply
    22,301.52x = 30,780.18 × 15,225.36
  4. Step 4: Simplify right side
    22,301.52x = 468,639,321.36
  5. Step 5: Solve for x
    x = 468,639,321.36/22,301.52
  6. Step 6: Final answer
    x = 21,013.78

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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.