Home / 22,476.32-31,007.28-13,518.56

Finding the Fourth Proportional to 22,476.32, 31,007.28 and 13,518.56

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Solution

The fourth proportional to 22,476.32, 31,007.28 and 13,518.56 is: 18,649.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,476.32 : 31,007.28 = 13,518.56 : x
  2. Step 2: Convert to fraction form
    22,476.32/31,007.28 = 13,518.56/x
  3. Step 3: Cross multiply
    22,476.32x = 31,007.28 × 13,518.56
  4. Step 4: Simplify right side
    22,476.32x = 419,173,775.12
  5. Step 5: Solve for x
    x = 419,173,775.12/22,476.32
  6. Step 6: Final answer
    x = 18,649.57

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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.