Home / 28,073.48-38,739.74-15,324.12

Finding the Fourth Proportional to 28,073.48, 38,739.74 and 15,324.12

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Solution

The fourth proportional to 28,073.48, 38,739.74 and 15,324.12 is: 21,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.48 : 38,739.74 = 15,324.12 : x
  2. Step 2: Convert to fraction form
    28,073.48/38,739.74 = 15,324.12/x
  3. Step 3: Cross multiply
    28,073.48x = 38,739.74 × 15,324.12
  4. Step 4: Simplify right side
    28,073.48x = 593,652,347.91
  5. Step 5: Solve for x
    x = 593,652,347.91/28,073.48
  6. Step 6: Final answer
    x = 21,146.38

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Similar ratio
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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.