Home / 42,630.76-63,943.44-13,045.78

Finding the Fourth Proportional to 42,630.76, 63,943.44 and 13,045.78

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Solution

The fourth proportional to 42,630.76, 63,943.44 and 13,045.78 is: 19,567.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,630.76 : 63,943.44 = 13,045.78 : x
  2. Step 2: Convert to fraction form
    42,630.76/63,943.44 = 13,045.78/x
  3. Step 3: Cross multiply
    42,630.76x = 63,943.44 × 13,045.78
  4. Step 4: Simplify right side
    42,630.76x = 834,192,050.68
  5. Step 5: Solve for x
    x = 834,192,050.68/42,630.76
  6. Step 6: Final answer
    x = 19,567.84

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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.