Home / 27,748.31-38,292.14-18,300.47

Finding the Fourth Proportional to 27,748.31, 38,292.14 and 18,300.47

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Solution

The fourth proportional to 27,748.31, 38,292.14 and 18,300.47 is: 25,254.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,748.31 : 38,292.14 = 18,300.47 : x
  2. Step 2: Convert to fraction form
    27,748.31/38,292.14 = 18,300.47/x
  3. Step 3: Cross multiply
    27,748.31x = 38,292.14 × 18,300.47
  4. Step 4: Simplify right side
    27,748.31x = 700,764,013.60
  5. Step 5: Solve for x
    x = 700,764,013.60/27,748.31
  6. Step 6: Final answer
    x = 25,254.30

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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.