Home / 34,711.76-47,902.97-20,381.76

Finding the Fourth Proportional to 34,711.76, 47,902.97 and 20,381.76

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Solution

The fourth proportional to 34,711.76, 47,902.97 and 20,381.76 is: 28,127.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,711.76 : 47,902.97 = 20,381.76 : x
  2. Step 2: Convert to fraction form
    34,711.76/47,902.97 = 20,381.76/x
  3. Step 3: Cross multiply
    34,711.76x = 47,902.97 × 20,381.76
  4. Step 4: Simplify right side
    34,711.76x = 976,346,888.78
  5. Step 5: Solve for x
    x = 976,346,888.78/34,711.76
  6. Step 6: Final answer
    x = 28,127.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.