Home / 26,621.96-39,931.56-7,902.15

Finding the Fourth Proportional to 26,621.96, 39,931.56 and 7,902.15

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Solution

The fourth proportional to 26,621.96, 39,931.56 and 7,902.15 is: 11,852.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,621.96 : 39,931.56 = 7,902.15 : x
  2. Step 2: Convert to fraction form
    26,621.96/39,931.56 = 7,902.15/x
  3. Step 3: Cross multiply
    26,621.96x = 39,931.56 × 7,902.15
  4. Step 4: Simplify right side
    26,621.96x = 315,545,176.85
  5. Step 5: Solve for x
    x = 315,545,176.85/26,621.96
  6. Step 6: Final answer
    x = 11,852.82

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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.