Home / 20,951.49-31,437.45-9,859.26

Finding the Fourth Proportional to 20,951.49, 31,437.45 and 9,859.26

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Solution

The fourth proportional to 20,951.49, 31,437.45 and 9,859.26 is: 14,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951.49 : 31,437.45 = 9,859.26 : x
  2. Step 2: Convert to fraction form
    20,951.49/31,437.45 = 9,859.26/x
  3. Step 3: Cross multiply
    20,951.49x = 31,437.45 × 9,859.26
  4. Step 4: Simplify right side
    20,951.49x = 309,949,993.29
  5. Step 5: Solve for x
    x = 309,949,993.29/20,951.49
  6. Step 6: Final answer
    x = 14,793.70

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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.