Home / 31,400.38-47,016.55-26,418.12

Finding the Fourth Proportional to 31,400.38, 47,016.55 and 26,418.12

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Solution

The fourth proportional to 31,400.38, 47,016.55 and 26,418.12 is: 39,556.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,400.38 : 47,016.55 = 26,418.12 : x
  2. Step 2: Convert to fraction form
    31,400.38/47,016.55 = 26,418.12/x
  3. Step 3: Cross multiply
    31,400.38x = 47,016.55 × 26,418.12
  4. Step 4: Simplify right side
    31,400.38x = 1,242,089,113.30
  5. Step 5: Solve for x
    x = 1,242,089,113.30/31,400.38
  6. Step 6: Final answer
    x = 39,556.49

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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.