Home / 42,639.10-63,963.45-13,056.70

Finding the Fourth Proportional to 42,639.10, 63,963.45 and 13,056.70

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Solution

The fourth proportional to 42,639.10, 63,963.45 and 13,056.70 is: 19,586.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639.10 : 63,963.45 = 13,056.70 : x
  2. Step 2: Convert to fraction form
    42,639.10/63,963.45 = 13,056.70/x
  3. Step 3: Cross multiply
    42,639.10x = 63,963.45 × 13,056.70
  4. Step 4: Simplify right side
    42,639.10x = 835,151,577.62
  5. Step 5: Solve for x
    x = 835,151,577.62/42,639.10
  6. Step 6: Final answer
    x = 19,586.52

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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.