Home / 20,015.24-27,632.28-13,310

Finding the Fourth Proportional to 20,015.24, 27,632.28 and 13,310

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Solution

The fourth proportional to 20,015.24, 27,632.28 and 13,310 is: 18,375.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.24 : 27,632.28 = 13,310 : x
  2. Step 2: Convert to fraction form
    20,015.24/27,632.28 = 13,310/x
  3. Step 3: Cross multiply
    20,015.24x = 27,632.28 × 13,310
  4. Step 4: Simplify right side
    20,015.24x = 367,785,646.80
  5. Step 5: Solve for x
    x = 367,785,646.80/20,015.24
  6. Step 6: Final answer
    x = 18,375.28

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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.