Home / 21,834.40-32,751.60-7,043.80

Finding the Fourth Proportional to 21,834.40, 32,751.60 and 7,043.80

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Solution

The fourth proportional to 21,834.40, 32,751.60 and 7,043.80 is: 10,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,834.40 : 32,751.60 = 7,043.80 : x
  2. Step 2: Convert to fraction form
    21,834.40/32,751.60 = 7,043.80/x
  3. Step 3: Cross multiply
    21,834.40x = 32,751.60 × 7,043.80
  4. Step 4: Simplify right side
    21,834.40x = 230,695,720.08
  5. Step 5: Solve for x
    x = 230,695,720.08/21,834.40
  6. Step 6: Final answer
    x = 10,565.70

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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.