Home / 28,721.77-43,082.72-9,002.05

Finding the Fourth Proportional to 28,721.77, 43,082.72 and 9,002.05

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Solution

The fourth proportional to 28,721.77, 43,082.72 and 9,002.05 is: 13,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.77 : 43,082.72 = 9,002.05 : x
  2. Step 2: Convert to fraction form
    28,721.77/43,082.72 = 9,002.05/x
  3. Step 3: Cross multiply
    28,721.77x = 43,082.72 × 9,002.05
  4. Step 4: Simplify right side
    28,721.77x = 387,832,799.58
  5. Step 5: Solve for x
    x = 387,832,799.58/28,721.77
  6. Step 6: Final answer
    x = 13,503.10

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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.