Home / 28,310.07-42,479.70-15,822.30

Finding the Fourth Proportional to 28,310.07, 42,479.70 and 15,822.30

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Solution

The fourth proportional to 28,310.07, 42,479.70 and 15,822.30 is: 23,741.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.07 : 42,479.70 = 15,822.30 : x
  2. Step 2: Convert to fraction form
    28,310.07/42,479.70 = 15,822.30/x
  3. Step 3: Cross multiply
    28,310.07x = 42,479.70 × 15,822.30
  4. Step 4: Simplify right side
    28,310.07x = 672,126,557.31
  5. Step 5: Solve for x
    x = 672,126,557.31/28,310.07
  6. Step 6: Final answer
    x = 23,741.61

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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.