Home / 31,729.95-43,769.05-26,378.64

Finding the Fourth Proportional to 31,729.95, 43,769.05 and 26,378.64

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Solution

The fourth proportional to 31,729.95, 43,769.05 and 26,378.64 is: 36,387.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,729.95 : 43,769.05 = 26,378.64 : x
  2. Step 2: Convert to fraction form
    31,729.95/43,769.05 = 26,378.64/x
  3. Step 3: Cross multiply
    31,729.95x = 43,769.05 × 26,378.64
  4. Step 4: Simplify right side
    31,729.95x = 1,154,567,786.95
  5. Step 5: Solve for x
    x = 1,154,567,786.95/31,729.95
  6. Step 6: Final answer
    x = 36,387.31

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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.