Home / 47,615.76-71,428.42-17,638.07

Finding the Fourth Proportional to 47,615.76, 71,428.42 and 17,638.07

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Solution

The fourth proportional to 47,615.76, 71,428.42 and 17,638.07 is: 26,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,615.76 : 71,428.42 = 17,638.07 : x
  2. Step 2: Convert to fraction form
    47,615.76/71,428.42 = 17,638.07/x
  3. Step 3: Cross multiply
    47,615.76x = 71,428.42 × 17,638.07
  4. Step 4: Simplify right side
    47,615.76x = 1,259,859,136.85
  5. Step 5: Solve for x
    x = 1,259,859,136.85/47,615.76
  6. Step 6: Final answer
    x = 26,458.87

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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.