Home / 43,387.18-65,081.31-13,804.90

Finding the Fourth Proportional to 43,387.18, 65,081.31 and 13,804.90

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Solution

The fourth proportional to 43,387.18, 65,081.31 and 13,804.90 is: 20,707.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,387.18 : 65,081.31 = 13,804.90 : x
  2. Step 2: Convert to fraction form
    43,387.18/65,081.31 = 13,804.90/x
  3. Step 3: Cross multiply
    43,387.18x = 65,081.31 × 13,804.90
  4. Step 4: Simplify right side
    43,387.18x = 898,440,976.42
  5. Step 5: Solve for x
    x = 898,440,976.42/43,387.18
  6. Step 6: Final answer
    x = 20,707.52

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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.