Home / 40,011.12-60,016.70-10,428.88

Finding the Fourth Proportional to 40,011.12, 60,016.70 and 10,428.88

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Solution

The fourth proportional to 40,011.12, 60,016.70 and 10,428.88 is: 15,643.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,011.12 : 60,016.70 = 10,428.88 : x
  2. Step 2: Convert to fraction form
    40,011.12/60,016.70 = 10,428.88/x
  3. Step 3: Cross multiply
    40,011.12x = 60,016.70 × 10,428.88
  4. Step 4: Simplify right side
    40,011.12x = 625,906,962.30
  5. Step 5: Solve for x
    x = 625,906,962.30/40,011.12
  6. Step 6: Final answer
    x = 15,643.33

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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.