Home / 28,928.29-43,398.95-10,209.66

Finding the Fourth Proportional to 28,928.29, 43,398.95 and 10,209.66

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Solution

The fourth proportional to 28,928.29, 43,398.95 and 10,209.66 is: 15,316.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.29 : 43,398.95 = 10,209.66 : x
  2. Step 2: Convert to fraction form
    28,928.29/43,398.95 = 10,209.66/x
  3. Step 3: Cross multiply
    28,928.29x = 43,398.95 × 10,209.66
  4. Step 4: Simplify right side
    28,928.29x = 443,088,523.86
  5. Step 5: Solve for x
    x = 443,088,523.86/28,928.29
  6. Step 6: Final answer
    x = 15,316.79

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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.