Home / 22,508.76-31,063.90-12,438.07

Finding the Fourth Proportional to 22,508.76, 31,063.90 and 12,438.07

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Solution

The fourth proportional to 22,508.76, 31,063.90 and 12,438.07 is: 17,165.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,508.76 : 31,063.90 = 12,438.07 : x
  2. Step 2: Convert to fraction form
    22,508.76/31,063.90 = 12,438.07/x
  3. Step 3: Cross multiply
    22,508.76x = 31,063.90 × 12,438.07
  4. Step 4: Simplify right side
    22,508.76x = 386,374,962.67
  5. Step 5: Solve for x
    x = 386,374,962.67/22,508.76
  6. Step 6: Final answer
    x = 17,165.54

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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.