Home / 20,389.47-28,124.51-14,732.52

Finding the Fourth Proportional to 20,389.47, 28,124.51 and 14,732.52

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Solution

The fourth proportional to 20,389.47, 28,124.51 and 14,732.52 is: 20,321.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,389.47 : 28,124.51 = 14,732.52 : x
  2. Step 2: Convert to fraction form
    20,389.47/28,124.51 = 14,732.52/x
  3. Step 3: Cross multiply
    20,389.47x = 28,124.51 × 14,732.52
  4. Step 4: Simplify right side
    20,389.47x = 414,344,832.40
  5. Step 5: Solve for x
    x = 414,344,832.40/20,389.47
  6. Step 6: Final answer
    x = 20,321.52

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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.