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Finding the Fourth Proportional to 40,403.84, 60,605.88 and 19,612.76

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Solution

The fourth proportional to 40,403.84, 60,605.88 and 19,612.76 is: 29,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,403.84 : 60,605.88 = 19,612.76 : x
  2. Step 2: Convert to fraction form
    40,403.84/60,605.88 = 19,612.76/x
  3. Step 3: Cross multiply
    40,403.84x = 60,605.88 × 19,612.76
  4. Step 4: Simplify right side
    40,403.84x = 1,188,648,579.03
  5. Step 5: Solve for x
    x = 1,188,648,579.03/40,403.84
  6. Step 6: Final answer
    x = 29,419.20

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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.