Home / 20,729.57-31,088.63-5,733.11

Finding the Fourth Proportional to 20,729.57, 31,088.63 and 5,733.11

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Solution

The fourth proportional to 20,729.57, 31,088.63 and 5,733.11 is: 8,598.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729.57 : 31,088.63 = 5,733.11 : x
  2. Step 2: Convert to fraction form
    20,729.57/31,088.63 = 5,733.11/x
  3. Step 3: Cross multiply
    20,729.57x = 31,088.63 × 5,733.11
  4. Step 4: Simplify right side
    20,729.57x = 178,234,627.59
  5. Step 5: Solve for x
    x = 178,234,627.59/20,729.57
  6. Step 6: Final answer
    x = 8,598.09

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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.