Home / 34,527.87-47,648.66-20,387.70

Finding the Fourth Proportional to 34,527.87, 47,648.66 and 20,387.70

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Solution

The fourth proportional to 34,527.87, 47,648.66 and 20,387.70 is: 28,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,527.87 : 47,648.66 = 20,387.70 : x
  2. Step 2: Convert to fraction form
    34,527.87/47,648.66 = 20,387.70/x
  3. Step 3: Cross multiply
    34,527.87x = 47,648.66 × 20,387.70
  4. Step 4: Simplify right side
    34,527.87x = 971,446,483.54
  5. Step 5: Solve for x
    x = 971,446,483.54/34,527.87
  6. Step 6: Final answer
    x = 28,135.14

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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.