Home / 28,371.22-39,159.17-16,432.63

Finding the Fourth Proportional to 28,371.22, 39,159.17 and 16,432.63

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Solution

The fourth proportional to 28,371.22, 39,159.17 and 16,432.63 is: 22,681.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371.22 : 39,159.17 = 16,432.63 : x
  2. Step 2: Convert to fraction form
    28,371.22/39,159.17 = 16,432.63/x
  3. Step 3: Cross multiply
    28,371.22x = 39,159.17 × 16,432.63
  4. Step 4: Simplify right side
    28,371.22x = 643,488,151.72
  5. Step 5: Solve for x
    x = 643,488,151.72/28,371.22
  6. Step 6: Final answer
    x = 22,681.02

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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.