Home / 20,486.07-30,732.35-7,338.15

Finding the Fourth Proportional to 20,486.07, 30,732.35 and 7,338.15

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Solution

The fourth proportional to 20,486.07, 30,732.35 and 7,338.15 is: 11,008.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,486.07 : 30,732.35 = 7,338.15 : x
  2. Step 2: Convert to fraction form
    20,486.07/30,732.35 = 7,338.15/x
  3. Step 3: Cross multiply
    20,486.07x = 30,732.35 × 7,338.15
  4. Step 4: Simplify right side
    20,486.07x = 225,518,557.46
  5. Step 5: Solve for x
    x = 225,518,557.46/20,486.07
  6. Step 6: Final answer
    x = 11,008.39

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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.