Home / 43,463.01-65,189.07-13,878.39

Finding the Fourth Proportional to 43,463.01, 65,189.07 and 13,878.39

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Solution

The fourth proportional to 43,463.01, 65,189.07 and 13,878.39 is: 20,815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,463.01 : 65,189.07 = 13,878.39 : x
  2. Step 2: Convert to fraction form
    43,463.01/65,189.07 = 13,878.39/x
  3. Step 3: Cross multiply
    43,463.01x = 65,189.07 × 13,878.39
  4. Step 4: Simplify right side
    43,463.01x = 904,719,337.20
  5. Step 5: Solve for x
    x = 904,719,337.20/43,463.01
  6. Step 6: Final answer
    x = 20,815.85

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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.