Home / 20,735.01-31,115.85-20,658.48

Finding the Fourth Proportional to 20,735.01, 31,115.85 and 20,658.48

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Solution

The fourth proportional to 20,735.01, 31,115.85 and 20,658.48 is: 31,001.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.01 : 31,115.85 = 20,658.48 : x
  2. Step 2: Convert to fraction form
    20,735.01/31,115.85 = 20,658.48/x
  3. Step 3: Cross multiply
    20,735.01x = 31,115.85 × 20,658.48
  4. Step 4: Simplify right side
    20,735.01x = 642,806,164.91
  5. Step 5: Solve for x
    x = 642,806,164.91/20,735.01
  6. Step 6: Final answer
    x = 31,001.01

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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.