Home / 43,486.98-65,249.04-18,538.78

Finding the Fourth Proportional to 43,486.98, 65,249.04 and 18,538.78

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Solution

The fourth proportional to 43,486.98, 65,249.04 and 18,538.78 is: 27,816.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,486.98 : 65,249.04 = 18,538.78 : x
  2. Step 2: Convert to fraction form
    43,486.98/65,249.04 = 18,538.78/x
  3. Step 3: Cross multiply
    43,486.98x = 65,249.04 × 18,538.78
  4. Step 4: Simplify right side
    43,486.98x = 1,209,637,434.65
  5. Step 5: Solve for x
    x = 1,209,637,434.65/43,486.98
  6. Step 6: Final answer
    x = 27,816.08

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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.