Home / 43,387.74-65,091.60-18,428.58

Finding the Fourth Proportional to 43,387.74, 65,091.60 and 18,428.58

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Solution

The fourth proportional to 43,387.74, 65,091.60 and 18,428.58 is: 27,647.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,387.74 : 65,091.60 = 18,428.58 : x
  2. Step 2: Convert to fraction form
    43,387.74/65,091.60 = 18,428.58/x
  3. Step 3: Cross multiply
    43,387.74x = 65,091.60 × 18,428.58
  4. Step 4: Simplify right side
    43,387.74x = 1,199,545,757.93
  5. Step 5: Solve for x
    x = 1,199,545,757.93/43,387.74
  6. Step 6: Final answer
    x = 27,647.11

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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.