Home / 18,543.80-27,767.48-15,575.42

Finding the Fourth Proportional to 18,543.80, 27,767.48 and 15,575.42

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Solution

The fourth proportional to 18,543.80, 27,767.48 and 15,575.42 is: 23,322.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.80 : 27,767.48 = 15,575.42 : x
  2. Step 2: Convert to fraction form
    18,543.80/27,767.48 = 15,575.42/x
  3. Step 3: Cross multiply
    18,543.80x = 27,767.48 × 15,575.42
  4. Step 4: Simplify right side
    18,543.80x = 432,489,946.63
  5. Step 5: Solve for x
    x = 432,489,946.63/18,543.80
  6. Step 6: Final answer
    x = 23,322.62

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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.