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Finding the Fourth Proportional to 27,240.98, 40,861.47 and 8,520.62

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Solution

The fourth proportional to 27,240.98, 40,861.47 and 8,520.62 is: 12,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,240.98 : 40,861.47 = 8,520.62 : x
  2. Step 2: Convert to fraction form
    27,240.98/40,861.47 = 8,520.62/x
  3. Step 3: Cross multiply
    27,240.98x = 40,861.47 × 8,520.62
  4. Step 4: Simplify right side
    27,240.98x = 348,165,058.51
  5. Step 5: Solve for x
    x = 348,165,058.51/27,240.98
  6. Step 6: Final answer
    x = 12,780.93

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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.