Home / 28,410.19-42,613.68-8,687.18

Finding the Fourth Proportional to 28,410.19, 42,613.68 and 8,687.18

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Solution

The fourth proportional to 28,410.19, 42,613.68 and 8,687.18 is: 13,030.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.19 : 42,613.68 = 8,687.18 : x
  2. Step 2: Convert to fraction form
    28,410.19/42,613.68 = 8,687.18/x
  3. Step 3: Cross multiply
    28,410.19x = 42,613.68 × 8,687.18
  4. Step 4: Simplify right side
    28,410.19x = 370,192,708.62
  5. Step 5: Solve for x
    x = 370,192,708.62/28,410.19
  6. Step 6: Final answer
    x = 13,030.28

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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.