Home / 28,072.42-38,746.45-18,514.03

Finding the Fourth Proportional to 28,072.42, 38,746.45 and 18,514.03

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Solution

The fourth proportional to 28,072.42, 38,746.45 and 18,514.03 is: 25,553.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.42 : 38,746.45 = 18,514.03 : x
  2. Step 2: Convert to fraction form
    28,072.42/38,746.45 = 18,514.03/x
  3. Step 3: Cross multiply
    28,072.42x = 38,746.45 × 18,514.03
  4. Step 4: Simplify right side
    28,072.42x = 717,352,937.69
  5. Step 5: Solve for x
    x = 717,352,937.69/28,072.42
  6. Step 6: Final answer
    x = 25,553.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.