Home / 20,748.26-31,114.76-7,417.66

Finding the Fourth Proportional to 20,748.26, 31,114.76 and 7,417.66

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Solution

The fourth proportional to 20,748.26, 31,114.76 and 7,417.66 is: 11,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.26 : 31,114.76 = 7,417.66 : x
  2. Step 2: Convert to fraction form
    20,748.26/31,114.76 = 7,417.66/x
  3. Step 3: Cross multiply
    20,748.26x = 31,114.76 × 7,417.66
  4. Step 4: Simplify right side
    20,748.26x = 230,798,806.25
  5. Step 5: Solve for x
    x = 230,798,806.25/20,748.26
  6. Step 6: Final answer
    x = 11,123.76

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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.