Home / 29,526.78-40,723.92-18,917.40

Finding the Fourth Proportional to 29,526.78, 40,723.92 and 18,917.40

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Solution

The fourth proportional to 29,526.78, 40,723.92 and 18,917.40 is: 26,091.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,526.78 : 40,723.92 = 18,917.40 : x
  2. Step 2: Convert to fraction form
    29,526.78/40,723.92 = 18,917.40/x
  3. Step 3: Cross multiply
    29,526.78x = 40,723.92 × 18,917.40
  4. Step 4: Simplify right side
    29,526.78x = 770,390,684.21
  5. Step 5: Solve for x
    x = 770,390,684.21/29,526.78
  6. Step 6: Final answer
    x = 26,091.25

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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.