Home / 38,785.68-58,155.84-21,250.80

Finding the Fourth Proportional to 38,785.68, 58,155.84 and 21,250.80

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Solution

The fourth proportional to 38,785.68, 58,155.84 and 21,250.80 is: 31,863.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,785.68 : 58,155.84 = 21,250.80 : x
  2. Step 2: Convert to fraction form
    38,785.68/58,155.84 = 21,250.80/x
  3. Step 3: Cross multiply
    38,785.68x = 58,155.84 × 21,250.80
  4. Step 4: Simplify right side
    38,785.68x = 1,235,858,124.67
  5. Step 5: Solve for x
    x = 1,235,858,124.67/38,785.68
  6. Step 6: Final answer
    x = 31,863.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.