Home / 22,515.84-31,084.56-15,452.64

Finding the Fourth Proportional to 22,515.84, 31,084.56 and 15,452.64

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Solution

The fourth proportional to 22,515.84, 31,084.56 and 15,452.64 is: 21,333.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,515.84 : 31,084.56 = 15,452.64 : x
  2. Step 2: Convert to fraction form
    22,515.84/31,084.56 = 15,452.64/x
  3. Step 3: Cross multiply
    22,515.84x = 31,084.56 × 15,452.64
  4. Step 4: Simplify right side
    22,515.84x = 480,338,515.24
  5. Step 5: Solve for x
    x = 480,338,515.24/22,515.84
  6. Step 6: Final answer
    x = 21,333.36

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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.