Home / 34,249.13-47,265.59-20,818.20

Finding the Fourth Proportional to 34,249.13, 47,265.59 and 20,818.20

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Solution

The fourth proportional to 34,249.13, 47,265.59 and 20,818.20 is: 28,730.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,249.13 : 47,265.59 = 20,818.20 : x
  2. Step 2: Convert to fraction form
    34,249.13/47,265.59 = 20,818.20/x
  3. Step 3: Cross multiply
    34,249.13x = 47,265.59 × 20,818.20
  4. Step 4: Simplify right side
    34,249.13x = 983,984,557.78
  5. Step 5: Solve for x
    x = 983,984,557.78/34,249.13
  6. Step 6: Final answer
    x = 28,730.21

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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.