Home / 28,085.52-38,757.48-15,510

Finding the Fourth Proportional to 28,085.52, 38,757.48 and 15,510

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Solution

The fourth proportional to 28,085.52, 38,757.48 and 15,510 is: 21,403.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.52 : 38,757.48 = 15,510 : x
  2. Step 2: Convert to fraction form
    28,085.52/38,757.48 = 15,510/x
  3. Step 3: Cross multiply
    28,085.52x = 38,757.48 × 15,510
  4. Step 4: Simplify right side
    28,085.52x = 601,128,514.80
  5. Step 5: Solve for x
    x = 601,128,514.80/28,085.52
  6. Step 6: Final answer
    x = 21,403.50

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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.