Home / 43,721.51-65,565.86-14,131.40

Finding the Fourth Proportional to 43,721.51, 65,565.86 and 14,131.40

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Solution

The fourth proportional to 43,721.51, 65,565.86 and 14,131.40 is: 21,191.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,721.51 : 65,565.86 = 14,131.40 : x
  2. Step 2: Convert to fraction form
    43,721.51/65,565.86 = 14,131.40/x
  3. Step 3: Cross multiply
    43,721.51x = 65,565.86 × 14,131.40
  4. Step 4: Simplify right side
    43,721.51x = 926,536,995.52
  5. Step 5: Solve for x
    x = 926,536,995.52/43,721.51
  6. Step 6: Final answer
    x = 21,191.79

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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.