Home / 31,391.22-43,322.93-17,964.39

Finding the Fourth Proportional to 31,391.22, 43,322.93 and 17,964.39

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Solution

The fourth proportional to 31,391.22, 43,322.93 and 17,964.39 is: 24,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.22 : 43,322.93 = 17,964.39 : x
  2. Step 2: Convert to fraction form
    31,391.22/43,322.93 = 17,964.39/x
  3. Step 3: Cross multiply
    31,391.22x = 43,322.93 × 17,964.39
  4. Step 4: Simplify right side
    31,391.22x = 778,270,010.46
  5. Step 5: Solve for x
    x = 778,270,010.46/31,391.22
  6. Step 6: Final answer
    x = 24,792.60

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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.