Home / 40,639.20-60,958.80-19,848.12

Finding the Fourth Proportional to 40,639.20, 60,958.80 and 19,848.12

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Solution

The fourth proportional to 40,639.20, 60,958.80 and 19,848.12 is: 29,772.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,639.20 : 60,958.80 = 19,848.12 : x
  2. Step 2: Convert to fraction form
    40,639.20/60,958.80 = 19,848.12/x
  3. Step 3: Cross multiply
    40,639.20x = 60,958.80 × 19,848.12
  4. Step 4: Simplify right side
    40,639.20x = 1,209,917,577.46
  5. Step 5: Solve for x
    x = 1,209,917,577.46/40,639.20
  6. Step 6: Final answer
    x = 29,772.18

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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.