Home / 42,272.79-63,436.86-15,977.54

Finding the Fourth Proportional to 42,272.79, 63,436.86 and 15,977.54

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Solution

The fourth proportional to 42,272.79, 63,436.86 and 15,977.54 is: 23,976.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,272.79 : 63,436.86 = 15,977.54 : x
  2. Step 2: Convert to fraction form
    42,272.79/63,436.86 = 15,977.54/x
  3. Step 3: Cross multiply
    42,272.79x = 63,436.86 × 15,977.54
  4. Step 4: Simplify right side
    42,272.79x = 1,013,564,650.94
  5. Step 5: Solve for x
    x = 1,013,564,650.94/42,272.79
  6. Step 6: Final answer
    x = 23,976.76

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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.