Home / 23,721.30-35,408.25-20,918.88

Finding the Fourth Proportional to 23,721.30, 35,408.25 and 20,918.88

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Solution

The fourth proportional to 23,721.30, 35,408.25 and 20,918.88 is: 31,225.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,721.30 : 35,408.25 = 20,918.88 : x
  2. Step 2: Convert to fraction form
    23,721.30/35,408.25 = 20,918.88/x
  3. Step 3: Cross multiply
    23,721.30x = 35,408.25 × 20,918.88
  4. Step 4: Simplify right side
    23,721.30x = 740,700,932.76
  5. Step 5: Solve for x
    x = 740,700,932.76/23,721.30
  6. Step 6: Final answer
    x = 31,225.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.