Home / 43,565.14-65,347.74-12,400.40

Finding the Fourth Proportional to 43,565.14, 65,347.74 and 12,400.40

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Solution

The fourth proportional to 43,565.14, 65,347.74 and 12,400.40 is: 18,600.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,565.14 : 65,347.74 = 12,400.40 : x
  2. Step 2: Convert to fraction form
    43,565.14/65,347.74 = 12,400.40/x
  3. Step 3: Cross multiply
    43,565.14x = 65,347.74 × 12,400.40
  4. Step 4: Simplify right side
    43,565.14x = 810,338,115.10
  5. Step 5: Solve for x
    x = 810,338,115.10/43,565.14
  6. Step 6: Final answer
    x = 18,600.61

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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.