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Finding the Fourth Proportional to 41,138.61, 61,713.03 and 14,478.30

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Solution

The fourth proportional to 41,138.61, 61,713.03 and 14,478.30 is: 21,719.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,138.61 : 61,713.03 = 14,478.30 : x
  2. Step 2: Convert to fraction form
    41,138.61/61,713.03 = 14,478.30/x
  3. Step 3: Cross multiply
    41,138.61x = 61,713.03 × 14,478.30
  4. Step 4: Simplify right side
    41,138.61x = 893,499,762.25
  5. Step 5: Solve for x
    x = 893,499,762.25/41,138.61
  6. Step 6: Final answer
    x = 21,719.25

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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.