Home / 36,189.89-54,278.45-13,985.01

Finding the Fourth Proportional to 36,189.89, 54,278.45 and 13,985.01

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Solution

The fourth proportional to 36,189.89, 54,278.45 and 13,985.01 is: 20,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,189.89 : 54,278.45 = 13,985.01 : x
  2. Step 2: Convert to fraction form
    36,189.89/54,278.45 = 13,985.01/x
  3. Step 3: Cross multiply
    36,189.89x = 54,278.45 × 13,985.01
  4. Step 4: Simplify right side
    36,189.89x = 759,084,648.55
  5. Step 5: Solve for x
    x = 759,084,648.55/36,189.89
  6. Step 6: Final answer
    x = 20,975.05

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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.