Home / 28,775.12-39,717.04-25,785.76

Finding the Fourth Proportional to 28,775.12, 39,717.04 and 25,785.76

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Solution

The fourth proportional to 28,775.12, 39,717.04 and 25,785.76 is: 35,590.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775.12 : 39,717.04 = 25,785.76 : x
  2. Step 2: Convert to fraction form
    28,775.12/39,717.04 = 25,785.76/x
  3. Step 3: Cross multiply
    28,775.12x = 39,717.04 × 25,785.76
  4. Step 4: Simplify right side
    28,775.12x = 1,024,134,061.35
  5. Step 5: Solve for x
    x = 1,024,134,061.35/28,775.12
  6. Step 6: Final answer
    x = 35,590.96

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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.