Home / 42,204.32-63,315.02-18,830.76

Finding the Fourth Proportional to 42,204.32, 63,315.02 and 18,830.76

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Solution

The fourth proportional to 42,204.32, 63,315.02 and 18,830.76 is: 28,249.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,204.32 : 63,315.02 = 18,830.76 : x
  2. Step 2: Convert to fraction form
    42,204.32/63,315.02 = 18,830.76/x
  3. Step 3: Cross multiply
    42,204.32x = 63,315.02 × 18,830.76
  4. Step 4: Simplify right side
    42,204.32x = 1,192,269,946.02
  5. Step 5: Solve for x
    x = 1,192,269,946.02/42,204.32
  6. Step 6: Final answer
    x = 28,249.95

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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.