Home / 29,400.40-40,571.86-15,971.35

Finding the Fourth Proportional to 29,400.40, 40,571.86 and 15,971.35

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Solution

The fourth proportional to 29,400.40, 40,571.86 and 15,971.35 is: 22,040.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,400.40 : 40,571.86 = 15,971.35 : x
  2. Step 2: Convert to fraction form
    29,400.40/40,571.86 = 15,971.35/x
  3. Step 3: Cross multiply
    29,400.40x = 40,571.86 × 15,971.35
  4. Step 4: Simplify right side
    29,400.40x = 647,987,376.21
  5. Step 5: Solve for x
    x = 647,987,376.21/29,400.40
  6. Step 6: Final answer
    x = 22,040.09

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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.