Home / 34,790.78-48,011.55-20,446.76

Finding the Fourth Proportional to 34,790.78, 48,011.55 and 20,446.76

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Solution

The fourth proportional to 34,790.78, 48,011.55 and 20,446.76 is: 28,216.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,790.78 : 48,011.55 = 20,446.76 : x
  2. Step 2: Convert to fraction form
    34,790.78/48,011.55 = 20,446.76/x
  3. Step 3: Cross multiply
    34,790.78x = 48,011.55 × 20,446.76
  4. Step 4: Simplify right side
    34,790.78x = 981,680,640.08
  5. Step 5: Solve for x
    x = 981,680,640.08/34,790.78
  6. Step 6: Final answer
    x = 28,216.69

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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.