Home / 27,977.76-38,608.56-15,402.24

Finding the Fourth Proportional to 27,977.76, 38,608.56 and 15,402.24

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Solution

The fourth proportional to 27,977.76, 38,608.56 and 15,402.24 is: 21,254.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,977.76 : 38,608.56 = 15,402.24 : x
  2. Step 2: Convert to fraction form
    27,977.76/38,608.56 = 15,402.24/x
  3. Step 3: Cross multiply
    27,977.76x = 38,608.56 × 15,402.24
  4. Step 4: Simplify right side
    27,977.76x = 594,658,307.17
  5. Step 5: Solve for x
    x = 594,658,307.17/27,977.76
  6. Step 6: Final answer
    x = 21,254.68

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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.