Home / 26,238.91-39,325.56-20,670.26

Finding the Fourth Proportional to 26,238.91, 39,325.56 and 20,670.26

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Solution

The fourth proportional to 26,238.91, 39,325.56 and 20,670.26 is: 30,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,238.91 : 39,325.56 = 20,670.26 : x
  2. Step 2: Convert to fraction form
    26,238.91/39,325.56 = 20,670.26/x
  3. Step 3: Cross multiply
    26,238.91x = 39,325.56 × 20,670.26
  4. Step 4: Simplify right side
    26,238.91x = 812,869,549.85
  5. Step 5: Solve for x
    x = 812,869,549.85/26,238.91
  6. Step 6: Final answer
    x = 30,979.55

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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.