Home / 20,514.65-28,358.03-18,298.49

Finding the Fourth Proportional to 20,514.65, 28,358.03 and 18,298.49

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Solution

The fourth proportional to 20,514.65, 28,358.03 and 18,298.49 is: 25,294.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.65 : 28,358.03 = 18,298.49 : x
  2. Step 2: Convert to fraction form
    20,514.65/28,358.03 = 18,298.49/x
  3. Step 3: Cross multiply
    20,514.65x = 28,358.03 × 18,298.49
  4. Step 4: Simplify right side
    20,514.65x = 518,909,032.33
  5. Step 5: Solve for x
    x = 518,909,032.33/20,514.65
  6. Step 6: Final answer
    x = 25,294.57

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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.