Home / 20,160-27,822.24-11,207.52

Finding the Fourth Proportional to 20,160, 27,822.24 and 11,207.52

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Solution

The fourth proportional to 20,160, 27,822.24 and 11,207.52 is: 15,467.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160 : 27,822.24 = 11,207.52 : x
  2. Step 2: Convert to fraction form
    20,160/27,822.24 = 11,207.52/x
  3. Step 3: Cross multiply
    20,160x = 27,822.24 × 11,207.52
  4. Step 4: Simplify right side
    20,160x = 311,818,311.24
  5. Step 5: Solve for x
    x = 311,818,311.24/20,160
  6. Step 6: Final answer
    x = 15,467.18

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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.