Home / 42,197.20-63,320.10-15,920.80

Finding the Fourth Proportional to 42,197.20, 63,320.10 and 15,920.80

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Solution

The fourth proportional to 42,197.20, 63,320.10 and 15,920.80 is: 23,890.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,197.20 : 63,320.10 = 15,920.80 : x
  2. Step 2: Convert to fraction form
    42,197.20/63,320.10 = 15,920.80/x
  3. Step 3: Cross multiply
    42,197.20x = 63,320.10 × 15,920.80
  4. Step 4: Simplify right side
    42,197.20x = 1,008,106,648.08
  5. Step 5: Solve for x
    x = 1,008,106,648.08/42,197.20
  6. Step 6: Final answer
    x = 23,890.37

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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.