Home / 15,921.40-23,882.10-4,235.80

Finding the Fourth Proportional to 15,921.40, 23,882.10 and 4,235.80

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Solution

The fourth proportional to 15,921.40, 23,882.10 and 4,235.80 is: 6,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921.40 : 23,882.10 = 4,235.80 : x
  2. Step 2: Convert to fraction form
    15,921.40/23,882.10 = 4,235.80/x
  3. Step 3: Cross multiply
    15,921.40x = 23,882.10 × 4,235.80
  4. Step 4: Simplify right side
    15,921.40x = 101,159,799.18
  5. Step 5: Solve for x
    x = 101,159,799.18/15,921.40
  6. Step 6: Final answer
    x = 6,353.70

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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.