Home / 20,232.78-30,349.10-7,088.90

Finding the Fourth Proportional to 20,232.78, 30,349.10 and 7,088.90

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Solution

The fourth proportional to 20,232.78, 30,349.10 and 7,088.90 is: 10,633.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.78 : 30,349.10 = 7,088.90 : x
  2. Step 2: Convert to fraction form
    20,232.78/30,349.10 = 7,088.90/x
  3. Step 3: Cross multiply
    20,232.78x = 30,349.10 × 7,088.90
  4. Step 4: Simplify right side
    20,232.78x = 215,141,734.99
  5. Step 5: Solve for x
    x = 215,141,734.99/20,232.78
  6. Step 6: Final answer
    x = 10,633.33

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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.