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Finding the Fourth Proportional to 36,146.40, 54,176.40 and 18,607.20

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Solution

The fourth proportional to 36,146.40, 54,176.40 and 18,607.20 is: 27,888.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,146.40 : 54,176.40 = 18,607.20 : x
  2. Step 2: Convert to fraction form
    36,146.40/54,176.40 = 18,607.20/x
  3. Step 3: Cross multiply
    36,146.40x = 54,176.40 × 18,607.20
  4. Step 4: Simplify right side
    36,146.40x = 1,008,071,110.08
  5. Step 5: Solve for x
    x = 1,008,071,110.08/36,146.40
  6. Step 6: Final answer
    x = 27,888.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.