Home / 20,703.72-30,960.19-15,376.96

Finding the Fourth Proportional to 20,703.72, 30,960.19 and 15,376.96

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Solution

The fourth proportional to 20,703.72, 30,960.19 and 15,376.96 is: 22,994.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.72 : 30,960.19 = 15,376.96 : x
  2. Step 2: Convert to fraction form
    20,703.72/30,960.19 = 15,376.96/x
  3. Step 3: Cross multiply
    20,703.72x = 30,960.19 × 15,376.96
  4. Step 4: Simplify right side
    20,703.72x = 476,073,603.22
  5. Step 5: Solve for x
    x = 476,073,603.22/20,703.72
  6. Step 6: Final answer
    x = 22,994.59

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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.