Home / 31,211.86-43,069.26-17,782.32

Finding the Fourth Proportional to 31,211.86, 43,069.26 and 17,782.32

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Solution

The fourth proportional to 31,211.86, 43,069.26 and 17,782.32 is: 24,537.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,211.86 : 43,069.26 = 17,782.32 : x
  2. Step 2: Convert to fraction form
    31,211.86/43,069.26 = 17,782.32/x
  3. Step 3: Cross multiply
    31,211.86x = 43,069.26 × 17,782.32
  4. Step 4: Simplify right side
    31,211.86x = 765,871,363.48
  5. Step 5: Solve for x
    x = 765,871,363.48/31,211.86
  6. Step 6: Final answer
    x = 24,537.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.