Home / 20,231.65-27,925.85-11,735.92

Finding the Fourth Proportional to 20,231.65, 27,925.85 and 11,735.92

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Solution

The fourth proportional to 20,231.65, 27,925.85 and 11,735.92 is: 16,199.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.65 : 27,925.85 = 11,735.92 : x
  2. Step 2: Convert to fraction form
    20,231.65/27,925.85 = 11,735.92/x
  3. Step 3: Cross multiply
    20,231.65x = 27,925.85 × 11,735.92
  4. Step 4: Simplify right side
    20,231.65x = 327,735,541.53
  5. Step 5: Solve for x
    x = 327,735,541.53/20,231.65
  6. Step 6: Final answer
    x = 16,199.15

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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.