Home / 43,613.02-65,412.51-12,440.98

Finding the Fourth Proportional to 43,613.02, 65,412.51 and 12,440.98

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Solution

The fourth proportional to 43,613.02, 65,412.51 and 12,440.98 is: 18,659.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,613.02 : 65,412.51 = 12,440.98 : x
  2. Step 2: Convert to fraction form
    43,613.02/65,412.51 = 12,440.98/x
  3. Step 3: Cross multiply
    43,613.02x = 65,412.51 × 12,440.98
  4. Step 4: Simplify right side
    43,613.02x = 813,795,728.66
  5. Step 5: Solve for x
    x = 813,795,728.66/43,613.02
  6. Step 6: Final answer
    x = 18,659.47

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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.