Home / 40,319.80-60,456.06-12,231.40

Finding the Fourth Proportional to 40,319.80, 60,456.06 and 12,231.40

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Solution

The fourth proportional to 40,319.80, 60,456.06 and 12,231.40 is: 18,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,319.80 : 60,456.06 = 12,231.40 : x
  2. Step 2: Convert to fraction form
    40,319.80/60,456.06 = 12,231.40/x
  3. Step 3: Cross multiply
    40,319.80x = 60,456.06 × 12,231.40
  4. Step 4: Simplify right side
    40,319.80x = 739,462,252.28
  5. Step 5: Solve for x
    x = 739,462,252.28/40,319.80
  6. Step 6: Final answer
    x = 18,339.93

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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.