Home / 20,702.60-31,053.90-16,474.40

Finding the Fourth Proportional to 20,702.60, 31,053.90 and 16,474.40

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Solution

The fourth proportional to 20,702.60, 31,053.90 and 16,474.40 is: 24,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702.60 : 31,053.90 = 16,474.40 : x
  2. Step 2: Convert to fraction form
    20,702.60/31,053.90 = 16,474.40/x
  3. Step 3: Cross multiply
    20,702.60x = 31,053.90 × 16,474.40
  4. Step 4: Simplify right side
    20,702.60x = 511,594,370.16
  5. Step 5: Solve for x
    x = 511,594,370.16/20,702.60
  6. Step 6: Final answer
    x = 24,711.60

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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.