Home / 20,701.24-31,066.90-15,521.08

Finding the Fourth Proportional to 20,701.24, 31,066.90 and 15,521.08

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Solution

The fourth proportional to 20,701.24, 31,066.90 and 15,521.08 is: 23,292.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.24 : 31,066.90 = 15,521.08 : x
  2. Step 2: Convert to fraction form
    20,701.24/31,066.90 = 15,521.08/x
  3. Step 3: Cross multiply
    20,701.24x = 31,066.90 × 15,521.08
  4. Step 4: Simplify right side
    20,701.24x = 482,191,840.25
  5. Step 5: Solve for x
    x = 482,191,840.25/20,701.24
  6. Step 6: Final answer
    x = 23,292.90

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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.