Home / 43,570.46-65,358.12-12,403.28

Finding the Fourth Proportional to 43,570.46, 65,358.12 and 12,403.28

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Solution

The fourth proportional to 43,570.46, 65,358.12 and 12,403.28 is: 18,605.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,570.46 : 65,358.12 = 12,403.28 : x
  2. Step 2: Convert to fraction form
    43,570.46/65,358.12 = 12,403.28/x
  3. Step 3: Cross multiply
    43,570.46x = 65,358.12 × 12,403.28
  4. Step 4: Simplify right side
    43,570.46x = 810,655,062.63
  5. Step 5: Solve for x
    x = 810,655,062.63/43,570.46
  6. Step 6: Final answer
    x = 18,605.61

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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.