Home / 36,538.56-54,758.16-18,972

Finding the Fourth Proportional to 36,538.56, 54,758.16 and 18,972

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Solution

The fourth proportional to 36,538.56, 54,758.16 and 18,972 is: 28,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,538.56 : 54,758.16 = 18,972 : x
  2. Step 2: Convert to fraction form
    36,538.56/54,758.16 = 18,972/x
  3. Step 3: Cross multiply
    36,538.56x = 54,758.16 × 18,972
  4. Step 4: Simplify right side
    36,538.56x = 1,038,871,811.52
  5. Step 5: Solve for x
    x = 1,038,871,811.52/36,538.56
  6. Step 6: Final answer
    x = 28,432.20

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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.