Home / 34,306.80-47,331-20,873.76

Finding the Fourth Proportional to 34,306.80, 47,331 and 20,873.76

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Solution

The fourth proportional to 34,306.80, 47,331 and 20,873.76 is: 28,798.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,306.80 : 47,331 = 20,873.76 : x
  2. Step 2: Convert to fraction form
    34,306.80/47,331 = 20,873.76/x
  3. Step 3: Cross multiply
    34,306.80x = 47,331 × 20,873.76
  4. Step 4: Simplify right side
    34,306.80x = 987,975,934.56
  5. Step 5: Solve for x
    x = 987,975,934.56/34,306.80
  6. Step 6: Final answer
    x = 28,798.25

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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.