Home / 32,932.80-45,432.31-20,988.71

Finding the Fourth Proportional to 32,932.80, 45,432.31 and 20,988.71

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Solution

The fourth proportional to 32,932.80, 45,432.31 and 20,988.71 is: 28,954.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,932.80 : 45,432.31 = 20,988.71 : x
  2. Step 2: Convert to fraction form
    32,932.80/45,432.31 = 20,988.71/x
  3. Step 3: Cross multiply
    32,932.80x = 45,432.31 × 20,988.71
  4. Step 4: Simplify right side
    32,932.80x = 953,565,356.88
  5. Step 5: Solve for x
    x = 953,565,356.88/32,932.80
  6. Step 6: Final answer
    x = 28,954.88

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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.