Home / 22,981.92-31,727.16-15,467.76

Finding the Fourth Proportional to 22,981.92, 31,727.16 and 15,467.76

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Solution

The fourth proportional to 22,981.92, 31,727.16 and 15,467.76 is: 21,353.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,981.92 : 31,727.16 = 15,467.76 : x
  2. Step 2: Convert to fraction form
    22,981.92/31,727.16 = 15,467.76/x
  3. Step 3: Cross multiply
    22,981.92x = 31,727.16 × 15,467.76
  4. Step 4: Simplify right side
    22,981.92x = 490,748,096.36
  5. Step 5: Solve for x
    x = 490,748,096.36/22,981.92
  6. Step 6: Final answer
    x = 21,353.66

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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.