Home / 34,343.73-47,398.34-20,922.87

Finding the Fourth Proportional to 34,343.73, 47,398.34 and 20,922.87

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Solution

The fourth proportional to 34,343.73, 47,398.34 and 20,922.87 is: 28,875.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,343.73 : 47,398.34 = 20,922.87 : x
  2. Step 2: Convert to fraction form
    34,343.73/47,398.34 = 20,922.87/x
  3. Step 3: Cross multiply
    34,343.73x = 47,398.34 × 20,922.87
  4. Step 4: Simplify right side
    34,343.73x = 991,709,201.42
  5. Step 5: Solve for x
    x = 991,709,201.42/34,343.73
  6. Step 6: Final answer
    x = 28,875.99

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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.