Home / 43,386.18-65,079.27-12,217.38

Finding the Fourth Proportional to 43,386.18, 65,079.27 and 12,217.38

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Solution

The fourth proportional to 43,386.18, 65,079.27 and 12,217.38 is: 18,326.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,386.18 : 65,079.27 = 12,217.38 : x
  2. Step 2: Convert to fraction form
    43,386.18/65,079.27 = 12,217.38/x
  3. Step 3: Cross multiply
    43,386.18x = 65,079.27 × 12,217.38
  4. Step 4: Simplify right side
    43,386.18x = 795,098,171.71
  5. Step 5: Solve for x
    x = 795,098,171.71/43,386.18
  6. Step 6: Final answer
    x = 18,326.07

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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.