Home / 34,561.71-47,695.82-20,414.57

Finding the Fourth Proportional to 34,561.71, 47,695.82 and 20,414.57

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Solution

The fourth proportional to 34,561.71, 47,695.82 and 20,414.57 is: 28,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,561.71 : 47,695.82 = 20,414.57 : x
  2. Step 2: Convert to fraction form
    34,561.71/47,695.82 = 20,414.57/x
  3. Step 3: Cross multiply
    34,561.71x = 47,695.82 × 20,414.57
  4. Step 4: Simplify right side
    34,561.71x = 973,689,315.55
  5. Step 5: Solve for x
    x = 973,689,315.55/34,561.71
  6. Step 6: Final answer
    x = 28,172.49

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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.