Home / 20,223.42-27,908.36-11,270.74

Finding the Fourth Proportional to 20,223.42, 27,908.36 and 11,270.74

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Solution

The fourth proportional to 20,223.42, 27,908.36 and 11,270.74 is: 15,553.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.42 : 27,908.36 = 11,270.74 : x
  2. Step 2: Convert to fraction form
    20,223.42/27,908.36 = 11,270.74/x
  3. Step 3: Cross multiply
    20,223.42x = 27,908.36 × 11,270.74
  4. Step 4: Simplify right side
    20,223.42x = 314,547,869.39
  5. Step 5: Solve for x
    x = 314,547,869.39/20,223.42
  6. Step 6: Final answer
    x = 15,553.64

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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.