Home / 36,438.60-54,657.90-20,845.29

Finding the Fourth Proportional to 36,438.60, 54,657.90 and 20,845.29

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Solution

The fourth proportional to 36,438.60, 54,657.90 and 20,845.29 is: 31,267.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,438.60 : 54,657.90 = 20,845.29 : x
  2. Step 2: Convert to fraction form
    36,438.60/54,657.90 = 20,845.29/x
  3. Step 3: Cross multiply
    36,438.60x = 54,657.90 × 20,845.29
  4. Step 4: Simplify right side
    36,438.60x = 1,139,359,776.29
  5. Step 5: Solve for x
    x = 1,139,359,776.29/36,438.60
  6. Step 6: Final answer
    x = 31,267.94

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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.