Home / 22,746.75-31,390.74-13,315.52

Finding the Fourth Proportional to 22,746.75, 31,390.74 and 13,315.52

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Solution

The fourth proportional to 22,746.75, 31,390.74 and 13,315.52 is: 18,375.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,746.75 : 31,390.74 = 13,315.52 : x
  2. Step 2: Convert to fraction form
    22,746.75/31,390.74 = 13,315.52/x
  3. Step 3: Cross multiply
    22,746.75x = 31,390.74 × 13,315.52
  4. Step 4: Simplify right side
    22,746.75x = 417,983,869.33
  5. Step 5: Solve for x
    x = 417,983,869.33/22,746.75
  6. Step 6: Final answer
    x = 18,375.54

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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.