Home / 31,369.03-43,278.70-17,930.79

Finding the Fourth Proportional to 31,369.03, 43,278.70 and 17,930.79

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Solution

The fourth proportional to 31,369.03, 43,278.70 and 17,930.79 is: 24,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369.03 : 43,278.70 = 17,930.79 : x
  2. Step 2: Convert to fraction form
    31,369.03/43,278.70 = 17,930.79/x
  3. Step 3: Cross multiply
    31,369.03x = 43,278.70 × 17,930.79
  4. Step 4: Simplify right side
    31,369.03x = 776,021,281.17
  5. Step 5: Solve for x
    x = 776,021,281.17/31,369.03
  6. Step 6: Final answer
    x = 24,738.45

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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.