Home / 27,851.58-38,437.20-15,276.60

Finding the Fourth Proportional to 27,851.58, 38,437.20 and 15,276.60

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Solution

The fourth proportional to 27,851.58, 38,437.20 and 15,276.60 is: 21,082.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,851.58 : 38,437.20 = 15,276.60 : x
  2. Step 2: Convert to fraction form
    27,851.58/38,437.20 = 15,276.60/x
  3. Step 3: Cross multiply
    27,851.58x = 38,437.20 × 15,276.60
  4. Step 4: Simplify right side
    27,851.58x = 587,189,729.52
  5. Step 5: Solve for x
    x = 587,189,729.52/27,851.58
  6. Step 6: Final answer
    x = 21,082.82

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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.