Home / 42,539.45-63,812.70-12,957.53

Finding the Fourth Proportional to 42,539.45, 63,812.70 and 12,957.53

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Solution

The fourth proportional to 42,539.45, 63,812.70 and 12,957.53 is: 19,437.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,539.45 : 63,812.70 = 12,957.53 : x
  2. Step 2: Convert to fraction form
    42,539.45/63,812.70 = 12,957.53/x
  3. Step 3: Cross multiply
    42,539.45x = 63,812.70 × 12,957.53
  4. Step 4: Simplify right side
    42,539.45x = 826,854,655.57
  5. Step 5: Solve for x
    x = 826,854,655.57/42,539.45
  6. Step 6: Final answer
    x = 19,437.36

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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.