Home / 40,157.32-60,239.22-12,455.32

Finding the Fourth Proportional to 40,157.32, 60,239.22 and 12,455.32

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Solution

The fourth proportional to 40,157.32, 60,239.22 and 12,455.32 is: 18,683.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,157.32 : 60,239.22 = 12,455.32 : x
  2. Step 2: Convert to fraction form
    40,157.32/60,239.22 = 12,455.32/x
  3. Step 3: Cross multiply
    40,157.32x = 60,239.22 × 12,455.32
  4. Step 4: Simplify right side
    40,157.32x = 750,298,761.65
  5. Step 5: Solve for x
    x = 750,298,761.65/40,157.32
  6. Step 6: Final answer
    x = 18,683.98

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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.