Home / 20,849.11-31,276.90-7,001.35

Finding the Fourth Proportional to 20,849.11, 31,276.90 and 7,001.35

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Solution

The fourth proportional to 20,849.11, 31,276.90 and 7,001.35 is: 10,503.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.11 : 31,276.90 = 7,001.35 : x
  2. Step 2: Convert to fraction form
    20,849.11/31,276.90 = 7,001.35/x
  3. Step 3: Cross multiply
    20,849.11x = 31,276.90 × 7,001.35
  4. Step 4: Simplify right side
    20,849.11x = 218,980,532.71
  5. Step 5: Solve for x
    x = 218,980,532.71/20,849.11
  6. Step 6: Final answer
    x = 10,503.11

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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.