Home / 28,025.42-42,043.13-9,306.63

Finding the Fourth Proportional to 28,025.42, 42,043.13 and 9,306.63

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Solution

The fourth proportional to 28,025.42, 42,043.13 and 9,306.63 is: 13,961.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.42 : 42,043.13 = 9,306.63 : x
  2. Step 2: Convert to fraction form
    28,025.42/42,043.13 = 9,306.63/x
  3. Step 3: Cross multiply
    28,025.42x = 42,043.13 × 9,306.63
  4. Step 4: Simplify right side
    28,025.42x = 391,279,878.22
  5. Step 5: Solve for x
    x = 391,279,878.22/28,025.42
  6. Step 6: Final answer
    x = 13,961.61

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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.