Home / 34,658.91-47,841.55-20,511.72

Finding the Fourth Proportional to 34,658.91, 47,841.55 and 20,511.72

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Solution

The fourth proportional to 34,658.91, 47,841.55 and 20,511.72 is: 28,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,658.91 : 47,841.55 = 20,511.72 : x
  2. Step 2: Convert to fraction form
    34,658.91/47,841.55 = 20,511.72/x
  3. Step 3: Cross multiply
    34,658.91x = 47,841.55 × 20,511.72
  4. Step 4: Simplify right side
    34,658.91x = 981,312,477.97
  5. Step 5: Solve for x
    x = 981,312,477.97/34,658.91
  6. Step 6: Final answer
    x = 28,313.43

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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.