Home / 28,313.23-42,470.10-8,591.79

Finding the Fourth Proportional to 28,313.23, 42,470.10 and 8,591.79

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Solution

The fourth proportional to 28,313.23, 42,470.10 and 8,591.79 is: 12,887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.23 : 42,470.10 = 8,591.79 : x
  2. Step 2: Convert to fraction form
    28,313.23/42,470.10 = 8,591.79/x
  3. Step 3: Cross multiply
    28,313.23x = 42,470.10 × 8,591.79
  4. Step 4: Simplify right side
    28,313.23x = 364,894,095.78
  5. Step 5: Solve for x
    x = 364,894,095.78/28,313.23
  6. Step 6: Final answer
    x = 12,887.76

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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.