Home / 18,877.43-28,254.52-13,878.48

Finding the Fourth Proportional to 18,877.43, 28,254.52 and 13,878.48

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Solution

The fourth proportional to 18,877.43, 28,254.52 and 13,878.48 is: 20,772.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.43 : 28,254.52 = 13,878.48 : x
  2. Step 2: Convert to fraction form
    18,877.43/28,254.52 = 13,878.48/x
  3. Step 3: Cross multiply
    18,877.43x = 28,254.52 × 13,878.48
  4. Step 4: Simplify right side
    18,877.43x = 392,129,702.12
  5. Step 5: Solve for x
    x = 392,129,702.12/18,877.43
  6. Step 6: Final answer
    x = 20,772.41

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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.