Home / 22,154.57-30,536.84-15,685.91

Finding the Fourth Proportional to 22,154.57, 30,536.84 and 15,685.91

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Solution

The fourth proportional to 22,154.57, 30,536.84 and 15,685.91 is: 21,620.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,154.57 : 30,536.84 = 15,685.91 : x
  2. Step 2: Convert to fraction form
    22,154.57/30,536.84 = 15,685.91/x
  3. Step 3: Cross multiply
    22,154.57x = 30,536.84 × 15,685.91
  4. Step 4: Simplify right side
    22,154.57x = 478,997,892.81
  5. Step 5: Solve for x
    x = 478,997,892.81/22,154.57
  6. Step 6: Final answer
    x = 21,620.73

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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.