Home / 20,316.16-30,474.10-5,525.02

Finding the Fourth Proportional to 20,316.16, 30,474.10 and 5,525.02

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Solution

The fourth proportional to 20,316.16, 30,474.10 and 5,525.02 is: 8,287.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.16 : 30,474.10 = 5,525.02 : x
  2. Step 2: Convert to fraction form
    20,316.16/30,474.10 = 5,525.02/x
  3. Step 3: Cross multiply
    20,316.16x = 30,474.10 × 5,525.02
  4. Step 4: Simplify right side
    20,316.16x = 168,369,921.98
  5. Step 5: Solve for x
    x = 168,369,921.98/20,316.16
  6. Step 6: Final answer
    x = 8,287.49

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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.