Home / 43,918.18-65,877.42-10,638.18

Finding the Fourth Proportional to 43,918.18, 65,877.42 and 10,638.18

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Solution

The fourth proportional to 43,918.18, 65,877.42 and 10,638.18 is: 15,957.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,918.18 : 65,877.42 = 10,638.18 : x
  2. Step 2: Convert to fraction form
    43,918.18/65,877.42 = 10,638.18/x
  3. Step 3: Cross multiply
    43,918.18x = 65,877.42 × 10,638.18
  4. Step 4: Simplify right side
    43,918.18x = 700,815,851.90
  5. Step 5: Solve for x
    x = 700,815,851.90/43,918.18
  6. Step 6: Final answer
    x = 15,957.31

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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.