Home / 42,329.40-63,521.10-20,167.80

Finding the Fourth Proportional to 42,329.40, 63,521.10 and 20,167.80

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Solution

The fourth proportional to 42,329.40, 63,521.10 and 20,167.80 is: 30,264.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,329.40 : 63,521.10 = 20,167.80 : x
  2. Step 2: Convert to fraction form
    42,329.40/63,521.10 = 20,167.80/x
  3. Step 3: Cross multiply
    42,329.40x = 63,521.10 × 20,167.80
  4. Step 4: Simplify right side
    42,329.40x = 1,281,080,840.58
  5. Step 5: Solve for x
    x = 1,281,080,840.58/42,329.40
  6. Step 6: Final answer
    x = 30,264.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.