Home / 23,018.20-31,756.80-15,064.96

Finding the Fourth Proportional to 23,018.20, 31,756.80 and 15,064.96

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Solution

The fourth proportional to 23,018.20, 31,756.80 and 15,064.96 is: 20,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,018.20 : 31,756.80 = 15,064.96 : x
  2. Step 2: Convert to fraction form
    23,018.20/31,756.80 = 15,064.96/x
  3. Step 3: Cross multiply
    23,018.20x = 31,756.80 × 15,064.96
  4. Step 4: Simplify right side
    23,018.20x = 478,414,921.73
  5. Step 5: Solve for x
    x = 478,414,921.73/23,018.20
  6. Step 6: Final answer
    x = 20,784.20

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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.