Home / 48,493.44-72,686.23-20,405.21

Finding the Fourth Proportional to 48,493.44, 72,686.23 and 20,405.21

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Solution

The fourth proportional to 48,493.44, 72,686.23 and 20,405.21 is: 30,585.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,493.44 : 72,686.23 = 20,405.21 : x
  2. Step 2: Convert to fraction form
    48,493.44/72,686.23 = 20,405.21/x
  3. Step 3: Cross multiply
    48,493.44x = 72,686.23 × 20,405.21
  4. Step 4: Simplify right side
    48,493.44x = 1,483,177,372.81
  5. Step 5: Solve for x
    x = 1,483,177,372.81/48,493.44
  6. Step 6: Final answer
    x = 30,585.11

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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.