Home / 27,955.28-38,579.02-15,209.26

Finding the Fourth Proportional to 27,955.28, 38,579.02 and 15,209.26

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Solution

The fourth proportional to 27,955.28, 38,579.02 and 15,209.26 is: 20,989.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,955.28 : 38,579.02 = 15,209.26 : x
  2. Step 2: Convert to fraction form
    27,955.28/38,579.02 = 15,209.26/x
  3. Step 3: Cross multiply
    27,955.28x = 38,579.02 × 15,209.26
  4. Step 4: Simplify right side
    27,955.28x = 586,758,345.73
  5. Step 5: Solve for x
    x = 586,758,345.73/27,955.28
  6. Step 6: Final answer
    x = 20,989.18

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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.