Home / 42,523.30-63,786-20,339.02

Finding the Fourth Proportional to 42,523.30, 63,786 and 20,339.02

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Solution

The fourth proportional to 42,523.30, 63,786 and 20,339.02 is: 30,509.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,523.30 : 63,786 = 20,339.02 : x
  2. Step 2: Convert to fraction form
    42,523.30/63,786 = 20,339.02/x
  3. Step 3: Cross multiply
    42,523.30x = 63,786 × 20,339.02
  4. Step 4: Simplify right side
    42,523.30x = 1,297,344,729.72
  5. Step 5: Solve for x
    x = 1,297,344,729.72/42,523.30
  6. Step 6: Final answer
    x = 30,509.03

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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.