Home / 27,753.06-38,289.87-15,807.95

Finding the Fourth Proportional to 27,753.06, 38,289.87 and 15,807.95

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Solution

The fourth proportional to 27,753.06, 38,289.87 and 15,807.95 is: 21,809.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,753.06 : 38,289.87 = 15,807.95 : x
  2. Step 2: Convert to fraction form
    27,753.06/38,289.87 = 15,807.95/x
  3. Step 3: Cross multiply
    27,753.06x = 38,289.87 × 15,807.95
  4. Step 4: Simplify right side
    27,753.06x = 605,284,159.02
  5. Step 5: Solve for x
    x = 605,284,159.02/27,753.06
  6. Step 6: Final answer
    x = 21,809.64

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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.