Home / 34,079.12-47,031.33-20,651.55

Finding the Fourth Proportional to 34,079.12, 47,031.33 and 20,651.55

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Solution

The fourth proportional to 34,079.12, 47,031.33 and 20,651.55 is: 28,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,079.12 : 47,031.33 = 20,651.55 : x
  2. Step 2: Convert to fraction form
    34,079.12/47,031.33 = 20,651.55/x
  3. Step 3: Cross multiply
    34,079.12x = 47,031.33 × 20,651.55
  4. Step 4: Simplify right side
    34,079.12x = 971,269,863.06
  5. Step 5: Solve for x
    x = 971,269,863.06/34,079.12
  6. Step 6: Final answer
    x = 28,500.44

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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.