Home / 27,867.79-38,455-16,535.34

Finding the Fourth Proportional to 27,867.79, 38,455 and 16,535.34

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Solution

The fourth proportional to 27,867.79, 38,455 and 16,535.34 is: 22,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,867.79 : 38,455 = 16,535.34 : x
  2. Step 2: Convert to fraction form
    27,867.79/38,455 = 16,535.34/x
  3. Step 3: Cross multiply
    27,867.79x = 38,455 × 16,535.34
  4. Step 4: Simplify right side
    27,867.79x = 635,866,499.70
  5. Step 5: Solve for x
    x = 635,866,499.70/27,867.79
  6. Step 6: Final answer
    x = 22,817.26

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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.