Home / 20,072.04-30,109.92-5,281.02

Finding the Fourth Proportional to 20,072.04, 30,109.92 and 5,281.02

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Solution

The fourth proportional to 20,072.04, 30,109.92 and 5,281.02 is: 7,922.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.04 : 30,109.92 = 5,281.02 : x
  2. Step 2: Convert to fraction form
    20,072.04/30,109.92 = 5,281.02/x
  3. Step 3: Cross multiply
    20,072.04x = 30,109.92 × 5,281.02
  4. Step 4: Simplify right side
    20,072.04x = 159,011,089.72
  5. Step 5: Solve for x
    x = 159,011,089.72/20,072.04
  6. Step 6: Final answer
    x = 7,922.02

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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.