Home / 21,901.25-32,853.13-7,111.43

Finding the Fourth Proportional to 21,901.25, 32,853.13 and 7,111.43

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Solution

The fourth proportional to 21,901.25, 32,853.13 and 7,111.43 is: 10,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,901.25 : 32,853.13 = 7,111.43 : x
  2. Step 2: Convert to fraction form
    21,901.25/32,853.13 = 7,111.43/x
  3. Step 3: Cross multiply
    21,901.25x = 32,853.13 × 7,111.43
  4. Step 4: Simplify right side
    21,901.25x = 233,632,675.43
  5. Step 5: Solve for x
    x = 233,632,675.43/21,901.25
  6. Step 6: Final answer
    x = 10,667.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.