Home / 42,639.21-63,876.80-23,862.40

Finding the Fourth Proportional to 42,639.21, 63,876.80 and 23,862.40

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Solution

The fourth proportional to 42,639.21, 63,876.80 and 23,862.40 is: 35,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639.21 : 63,876.80 = 23,862.40 : x
  2. Step 2: Convert to fraction form
    42,639.21/63,876.80 = 23,862.40/x
  3. Step 3: Cross multiply
    42,639.21x = 63,876.80 × 23,862.40
  4. Step 4: Simplify right side
    42,639.21x = 1,524,253,652.28
  5. Step 5: Solve for x
    x = 1,524,253,652.28/42,639.21
  6. Step 6: Final answer
    x = 35,747.70

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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.