Home / 28,002.20-42,003.29-9,534.20

Finding the Fourth Proportional to 28,002.20, 42,003.29 and 9,534.20

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Solution

The fourth proportional to 28,002.20, 42,003.29 and 9,534.20 is: 14,301.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,002.20 : 42,003.29 = 9,534.20 : x
  2. Step 2: Convert to fraction form
    28,002.20/42,003.29 = 9,534.20/x
  3. Step 3: Cross multiply
    28,002.20x = 42,003.29 × 9,534.20
  4. Step 4: Simplify right side
    28,002.20x = 400,467,509.83
  5. Step 5: Solve for x
    x = 400,467,509.83/28,002.20
  6. Step 6: Final answer
    x = 14,301.29

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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.