Home / 28,933.92-43,389-9,207.18

Finding the Fourth Proportional to 28,933.92, 43,389 and 9,207.18

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Solution

The fourth proportional to 28,933.92, 43,389 and 9,207.18 is: 13,806.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,933.92 : 43,389 = 9,207.18 : x
  2. Step 2: Convert to fraction form
    28,933.92/43,389 = 9,207.18/x
  3. Step 3: Cross multiply
    28,933.92x = 43,389 × 9,207.18
  4. Step 4: Simplify right side
    28,933.92x = 399,490,333.02
  5. Step 5: Solve for x
    x = 399,490,333.02/28,933.92
  6. Step 6: Final answer
    x = 13,806.99

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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.