Home / 21,282.24-31,920.96-5,701.12

Finding the Fourth Proportional to 21,282.24, 31,920.96 and 5,701.12

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Solution

The fourth proportional to 21,282.24, 31,920.96 and 5,701.12 is: 8,551.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.24 : 31,920.96 = 5,701.12 : x
  2. Step 2: Convert to fraction form
    21,282.24/31,920.96 = 5,701.12/x
  3. Step 3: Cross multiply
    21,282.24x = 31,920.96 × 5,701.12
  4. Step 4: Simplify right side
    21,282.24x = 181,985,223.48
  5. Step 5: Solve for x
    x = 181,985,223.48/21,282.24
  6. Step 6: Final answer
    x = 8,551.04

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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.