Home / 36,501.45-54,770.40-20,718.60

Finding the Fourth Proportional to 36,501.45, 54,770.40 and 20,718.60

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Solution

The fourth proportional to 36,501.45, 54,770.40 and 20,718.60 is: 31,088.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,501.45 : 54,770.40 = 20,718.60 : x
  2. Step 2: Convert to fraction form
    36,501.45/54,770.40 = 20,718.60/x
  3. Step 3: Cross multiply
    36,501.45x = 54,770.40 × 20,718.60
  4. Step 4: Simplify right side
    36,501.45x = 1,134,766,009.44
  5. Step 5: Solve for x
    x = 1,134,766,009.44/36,501.45
  6. Step 6: Final answer
    x = 31,088.24

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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.