Home / 20,795.06-28,697.16-11,363.62

Finding the Fourth Proportional to 20,795.06, 28,697.16 and 11,363.62

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Solution

The fourth proportional to 20,795.06, 28,697.16 and 11,363.62 is: 15,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.06 : 28,697.16 = 11,363.62 : x
  2. Step 2: Convert to fraction form
    20,795.06/28,697.16 = 11,363.62/x
  3. Step 3: Cross multiply
    20,795.06x = 28,697.16 × 11,363.62
  4. Step 4: Simplify right side
    20,795.06x = 326,103,621.32
  5. Step 5: Solve for x
    x = 326,103,621.32/20,795.06
  6. Step 6: Final answer
    x = 15,681.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.