Home / 28,220.69-42,301.17-10,439.91

Finding the Fourth Proportional to 28,220.69, 42,301.17 and 10,439.91

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Solution

The fourth proportional to 28,220.69, 42,301.17 and 10,439.91 is: 15,648.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,220.69 : 42,301.17 = 10,439.91 : x
  2. Step 2: Convert to fraction form
    28,220.69/42,301.17 = 10,439.91/x
  3. Step 3: Cross multiply
    28,220.69x = 42,301.17 × 10,439.91
  4. Step 4: Simplify right side
    28,220.69x = 441,620,407.69
  5. Step 5: Solve for x
    x = 441,620,407.69/28,220.69
  6. Step 6: Final answer
    x = 15,648.82

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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.