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Finding the Fourth Proportional to 27,257.70, 40,887.90 and 14,135.70

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Solution

The fourth proportional to 27,257.70, 40,887.90 and 14,135.70 is: 21,204.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,257.70 : 40,887.90 = 14,135.70 : x
  2. Step 2: Convert to fraction form
    27,257.70/40,887.90 = 14,135.70/x
  3. Step 3: Cross multiply
    27,257.70x = 40,887.90 × 14,135.70
  4. Step 4: Simplify right side
    27,257.70x = 577,979,088.03
  5. Step 5: Solve for x
    x = 577,979,088.03/27,257.70
  6. Step 6: Final answer
    x = 21,204.25

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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.