Home / 22,515.32-31,067.34-13,560.68

Finding the Fourth Proportional to 22,515.32, 31,067.34 and 13,560.68

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Solution

The fourth proportional to 22,515.32, 31,067.34 and 13,560.68 is: 18,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,515.32 : 31,067.34 = 13,560.68 : x
  2. Step 2: Convert to fraction form
    22,515.32/31,067.34 = 13,560.68/x
  3. Step 3: Cross multiply
    22,515.32x = 31,067.34 × 13,560.68
  4. Step 4: Simplify right side
    22,515.32x = 421,294,256.19
  5. Step 5: Solve for x
    x = 421,294,256.19/22,515.32
  6. Step 6: Final answer
    x = 18,711.45

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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.