Home / 42,141.66-63,212.70-12,559.76

Finding the Fourth Proportional to 42,141.66, 63,212.70 and 12,559.76

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Solution

The fourth proportional to 42,141.66, 63,212.70 and 12,559.76 is: 18,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,141.66 : 63,212.70 = 12,559.76 : x
  2. Step 2: Convert to fraction form
    42,141.66/63,212.70 = 12,559.76/x
  3. Step 3: Cross multiply
    42,141.66x = 63,212.70 × 12,559.76
  4. Step 4: Simplify right side
    42,141.66x = 793,936,340.95
  5. Step 5: Solve for x
    x = 793,936,340.95/42,141.66
  6. Step 6: Final answer
    x = 18,839.70

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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.