Home / 31,391.50-43,327.73-17,970.50

Finding the Fourth Proportional to 31,391.50, 43,327.73 and 17,970.50

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Solution

The fourth proportional to 31,391.50, 43,327.73 and 17,970.50 is: 24,803.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.50 : 43,327.73 = 17,970.50 : x
  2. Step 2: Convert to fraction form
    31,391.50/43,327.73 = 17,970.50/x
  3. Step 3: Cross multiply
    31,391.50x = 43,327.73 × 17,970.50
  4. Step 4: Simplify right side
    31,391.50x = 778,620,971.97
  5. Step 5: Solve for x
    x = 778,620,971.97/31,391.50
  6. Step 6: Final answer
    x = 24,803.56

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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.