Home / 38,723.50-53,409.18-26,806.78

Finding the Fourth Proportional to 38,723.50, 53,409.18 and 26,806.78

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Solution

The fourth proportional to 38,723.50, 53,409.18 and 26,806.78 is: 36,973.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,723.50 : 53,409.18 = 26,806.78 : x
  2. Step 2: Convert to fraction form
    38,723.50/53,409.18 = 26,806.78/x
  3. Step 3: Cross multiply
    38,723.50x = 53,409.18 × 26,806.78
  4. Step 4: Simplify right side
    38,723.50x = 1,431,728,138.24
  5. Step 5: Solve for x
    x = 1,431,728,138.24/38,723.50
  6. Step 6: Final answer
    x = 36,973.11

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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.