Home / 20,235.89-27,924.51-11,281.66

Finding the Fourth Proportional to 20,235.89, 27,924.51 and 11,281.66

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Solution

The fourth proportional to 20,235.89, 27,924.51 and 11,281.66 is: 15,568.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.89 : 27,924.51 = 11,281.66 : x
  2. Step 2: Convert to fraction form
    20,235.89/27,924.51 = 11,281.66/x
  3. Step 3: Cross multiply
    20,235.89x = 27,924.51 × 11,281.66
  4. Step 4: Simplify right side
    20,235.89x = 315,034,827.49
  5. Step 5: Solve for x
    x = 315,034,827.49/20,235.89
  6. Step 6: Final answer
    x = 15,568.12

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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.