Home / 48,408.15-72,538.26-20,312.97

Finding the Fourth Proportional to 48,408.15, 72,538.26 and 20,312.97

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Solution

The fourth proportional to 48,408.15, 72,538.26 and 20,312.97 is: 30,438.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,408.15 : 72,538.26 = 20,312.97 : x
  2. Step 2: Convert to fraction form
    48,408.15/72,538.26 = 20,312.97/x
  3. Step 3: Cross multiply
    48,408.15x = 72,538.26 × 20,312.97
  4. Step 4: Simplify right side
    48,408.15x = 1,473,467,499.23
  5. Step 5: Solve for x
    x = 1,473,467,499.23/48,408.15
  6. Step 6: Final answer
    x = 30,438.42

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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.