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Finding the Fourth Proportional to 27,047.31, 40,574.79 and 8,328.90

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Solution

The fourth proportional to 27,047.31, 40,574.79 and 8,328.90 is: 12,494.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,047.31 : 40,574.79 = 8,328.90 : x
  2. Step 2: Convert to fraction form
    27,047.31/40,574.79 = 8,328.90/x
  3. Step 3: Cross multiply
    27,047.31x = 40,574.79 × 8,328.90
  4. Step 4: Simplify right side
    27,047.31x = 337,943,368.43
  5. Step 5: Solve for x
    x = 337,943,368.43/27,047.31
  6. Step 6: Final answer
    x = 12,494.53

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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.