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Finding the Fourth Proportional to 29,489.40, 40,710.06 and 19,424.34

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Solution

The fourth proportional to 29,489.40, 40,710.06 and 19,424.34 is: 26,815.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,489.40 : 40,710.06 = 19,424.34 : x
  2. Step 2: Convert to fraction form
    29,489.40/40,710.06 = 19,424.34/x
  3. Step 3: Cross multiply
    29,489.40x = 40,710.06 × 19,424.34
  4. Step 4: Simplify right side
    29,489.40x = 790,766,046.86
  5. Step 5: Solve for x
    x = 790,766,046.86/29,489.40
  6. Step 6: Final answer
    x = 26,815.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.