Home / 27,807.44-38,373.89-15,870.97

Finding the Fourth Proportional to 27,807.44, 38,373.89 and 15,870.97

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Solution

The fourth proportional to 27,807.44, 38,373.89 and 15,870.97 is: 21,901.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.44 : 38,373.89 = 15,870.97 : x
  2. Step 2: Convert to fraction form
    27,807.44/38,373.89 = 15,870.97/x
  3. Step 3: Cross multiply
    27,807.44x = 38,373.89 × 15,870.97
  4. Step 4: Simplify right side
    27,807.44x = 609,030,825.59
  5. Step 5: Solve for x
    x = 609,030,825.59/27,807.44
  6. Step 6: Final answer
    x = 21,901.73

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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.