Home / 20,444.16-30,644.96-13,870.88

Finding the Fourth Proportional to 20,444.16, 30,644.96 and 13,870.88

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Solution

The fourth proportional to 20,444.16, 30,644.96 and 13,870.88 is: 20,791.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444.16 : 30,644.96 = 13,870.88 : x
  2. Step 2: Convert to fraction form
    20,444.16/30,644.96 = 13,870.88/x
  3. Step 3: Cross multiply
    20,444.16x = 30,644.96 × 13,870.88
  4. Step 4: Simplify right side
    20,444.16x = 425,072,562.76
  5. Step 5: Solve for x
    x = 425,072,562.76/20,444.16
  6. Step 6: Final answer
    x = 20,791.88

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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.