Home / 42,372.99-63,518.13-20,180.43

Finding the Fourth Proportional to 42,372.99, 63,518.13 and 20,180.43

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Solution

The fourth proportional to 42,372.99, 63,518.13 and 20,180.43 is: 30,250.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,372.99 : 63,518.13 = 20,180.43 : x
  2. Step 2: Convert to fraction form
    42,372.99/63,518.13 = 20,180.43/x
  3. Step 3: Cross multiply
    42,372.99x = 63,518.13 × 20,180.43
  4. Step 4: Simplify right side
    42,372.99x = 1,281,823,176.20
  5. Step 5: Solve for x
    x = 1,281,823,176.20/42,372.99
  6. Step 6: Final answer
    x = 30,250.95

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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.