Home / 21,084.80-31,637.52-9,236.97

Finding the Fourth Proportional to 21,084.80, 31,637.52 and 9,236.97

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Solution

The fourth proportional to 21,084.80, 31,637.52 and 9,236.97 is: 13,859.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,084.80 : 31,637.52 = 9,236.97 : x
  2. Step 2: Convert to fraction form
    21,084.80/31,637.52 = 9,236.97/x
  3. Step 3: Cross multiply
    21,084.80x = 31,637.52 × 9,236.97
  4. Step 4: Simplify right side
    21,084.80x = 292,234,823.11
  5. Step 5: Solve for x
    x = 292,234,823.11/21,084.80
  6. Step 6: Final answer
    x = 13,859.98

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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.