Home / 42,040.76-63,061.36-12,458.85

Finding the Fourth Proportional to 42,040.76, 63,061.36 and 12,458.85

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Solution

The fourth proportional to 42,040.76, 63,061.36 and 12,458.85 is: 18,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,040.76 : 63,061.36 = 12,458.85 : x
  2. Step 2: Convert to fraction form
    42,040.76/63,061.36 = 12,458.85/x
  3. Step 3: Cross multiply
    42,040.76x = 63,061.36 × 12,458.85
  4. Step 4: Simplify right side
    42,040.76x = 785,671,757.41
  5. Step 5: Solve for x
    x = 785,671,757.41/42,040.76
  6. Step 6: Final answer
    x = 18,688.34

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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.