Home / 21,330.60-32,000.88-7,290.74

Finding the Fourth Proportional to 21,330.60, 32,000.88 and 7,290.74

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Solution

The fourth proportional to 21,330.60, 32,000.88 and 7,290.74 is: 10,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330.60 : 32,000.88 = 7,290.74 : x
  2. Step 2: Convert to fraction form
    21,330.60/32,000.88 = 7,290.74/x
  3. Step 3: Cross multiply
    21,330.60x = 32,000.88 × 7,290.74
  4. Step 4: Simplify right side
    21,330.60x = 233,310,095.85
  5. Step 5: Solve for x
    x = 233,310,095.85/21,330.60
  6. Step 6: Final answer
    x = 10,937.81

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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.