Home / 20,158.56-30,343.98-17,151.84

Finding the Fourth Proportional to 20,158.56, 30,343.98 and 17,151.84

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Solution

The fourth proportional to 20,158.56, 30,343.98 and 17,151.84 is: 25,818.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.56 : 30,343.98 = 17,151.84 : x
  2. Step 2: Convert to fraction form
    20,158.56/30,343.98 = 17,151.84/x
  3. Step 3: Cross multiply
    20,158.56x = 30,343.98 × 17,151.84
  4. Step 4: Simplify right side
    20,158.56x = 520,455,089.92
  5. Step 5: Solve for x
    x = 520,455,089.92/20,158.56
  6. Step 6: Final answer
    x = 25,818.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.