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Finding the Fourth Proportional to 40,980.35, 61,474.01 and 11,398.19

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Solution

The fourth proportional to 40,980.35, 61,474.01 and 11,398.19 is: 17,098.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,980.35 : 61,474.01 = 11,398.19 : x
  2. Step 2: Convert to fraction form
    40,980.35/61,474.01 = 11,398.19/x
  3. Step 3: Cross multiply
    40,980.35x = 61,474.01 × 11,398.19
  4. Step 4: Simplify right side
    40,980.35x = 700,692,491.59
  5. Step 5: Solve for x
    x = 700,692,491.59/40,980.35
  6. Step 6: Final answer
    x = 17,098.25

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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.