Home / 42,408.08-63,515.23-20,237.03

Finding the Fourth Proportional to 42,408.08, 63,515.23 and 20,237.03

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Solution

The fourth proportional to 42,408.08, 63,515.23 and 20,237.03 is: 30,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,408.08 : 63,515.23 = 20,237.03 : x
  2. Step 2: Convert to fraction form
    42,408.08/63,515.23 = 20,237.03/x
  3. Step 3: Cross multiply
    42,408.08x = 63,515.23 × 20,237.03
  4. Step 4: Simplify right side
    42,408.08x = 1,285,359,246.80
  5. Step 5: Solve for x
    x = 1,285,359,246.80/42,408.08
  6. Step 6: Final answer
    x = 30,309.30

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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.