Home / 29,400.09-40,572.41-15,971.45

Finding the Fourth Proportional to 29,400.09, 40,572.41 and 15,971.45

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Solution

The fourth proportional to 29,400.09, 40,572.41 and 15,971.45 is: 22,040.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,400.09 : 40,572.41 = 15,971.45 : x
  2. Step 2: Convert to fraction form
    29,400.09/40,572.41 = 15,971.45/x
  3. Step 3: Cross multiply
    29,400.09x = 40,572.41 × 15,971.45
  4. Step 4: Simplify right side
    29,400.09x = 647,999,934.98
  5. Step 5: Solve for x
    x = 647,999,934.98/29,400.09
  6. Step 6: Final answer
    x = 22,040.75

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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.