Home / 20,531.06-30,784.79-8,036.45

Finding the Fourth Proportional to 20,531.06, 30,784.79 and 8,036.45

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Solution

The fourth proportional to 20,531.06, 30,784.79 and 8,036.45 is: 12,050.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,531.06 : 30,784.79 = 8,036.45 : x
  2. Step 2: Convert to fraction form
    20,531.06/30,784.79 = 8,036.45/x
  3. Step 3: Cross multiply
    20,531.06x = 30,784.79 × 8,036.45
  4. Step 4: Simplify right side
    20,531.06x = 247,400,445.69
  5. Step 5: Solve for x
    x = 247,400,445.69/20,531.06
  6. Step 6: Final answer
    x = 12,050.06

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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.