Home / 43,149.18-64,723.77-13,569.60

Finding the Fourth Proportional to 43,149.18, 64,723.77 and 13,569.60

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Solution

The fourth proportional to 43,149.18, 64,723.77 and 13,569.60 is: 20,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,149.18 : 64,723.77 = 13,569.60 : x
  2. Step 2: Convert to fraction form
    43,149.18/64,723.77 = 13,569.60/x
  3. Step 3: Cross multiply
    43,149.18x = 64,723.77 × 13,569.60
  4. Step 4: Simplify right side
    43,149.18x = 878,275,669.39
  5. Step 5: Solve for x
    x = 878,275,669.39/43,149.18
  6. Step 6: Final answer
    x = 20,354.40

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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.