Home / 27,921.75-38,532.02-15,346.50

Finding the Fourth Proportional to 27,921.75, 38,532.02 and 15,346.50

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Solution

The fourth proportional to 27,921.75, 38,532.02 and 15,346.50 is: 21,178.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.75 : 38,532.02 = 15,346.50 : x
  2. Step 2: Convert to fraction form
    27,921.75/38,532.02 = 15,346.50/x
  3. Step 3: Cross multiply
    27,921.75x = 38,532.02 × 15,346.50
  4. Step 4: Simplify right side
    27,921.75x = 591,331,568.20
  5. Step 5: Solve for x
    x = 591,331,568.20/27,921.75
  6. Step 6: Final answer
    x = 21,178.17

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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.