Home / 20,073.02-30,109.32-5,281.61

Finding the Fourth Proportional to 20,073.02, 30,109.32 and 5,281.61

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Solution

The fourth proportional to 20,073.02, 30,109.32 and 5,281.61 is: 7,922.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.02 : 30,109.32 = 5,281.61 : x
  2. Step 2: Convert to fraction form
    20,073.02/30,109.32 = 5,281.61/x
  3. Step 3: Cross multiply
    20,073.02x = 30,109.32 × 5,281.61
  4. Step 4: Simplify right side
    20,073.02x = 159,025,535.06
  5. Step 5: Solve for x
    x = 159,025,535.06/20,073.02
  6. Step 6: Final answer
    x = 7,922.35

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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.