Home / 27,748.56-38,292.30-15,172.50

Finding the Fourth Proportional to 27,748.56, 38,292.30 and 15,172.50

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Solution

The fourth proportional to 27,748.56, 38,292.30 and 15,172.50 is: 20,937.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,748.56 : 38,292.30 = 15,172.50 : x
  2. Step 2: Convert to fraction form
    27,748.56/38,292.30 = 15,172.50/x
  3. Step 3: Cross multiply
    27,748.56x = 38,292.30 × 15,172.50
  4. Step 4: Simplify right side
    27,748.56x = 580,989,921.75
  5. Step 5: Solve for x
    x = 580,989,921.75/27,748.56
  6. Step 6: Final answer
    x = 20,937.66

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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.