Home / 26,688.35-40,031.15-7,968.54

Finding the Fourth Proportional to 26,688.35, 40,031.15 and 7,968.54

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Solution

The fourth proportional to 26,688.35, 40,031.15 and 7,968.54 is: 11,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,688.35 : 40,031.15 = 7,968.54 : x
  2. Step 2: Convert to fraction form
    26,688.35/40,031.15 = 7,968.54/x
  3. Step 3: Cross multiply
    26,688.35x = 40,031.15 × 7,968.54
  4. Step 4: Simplify right side
    26,688.35x = 318,989,975.12
  5. Step 5: Solve for x
    x = 318,989,975.12/26,688.35
  6. Step 6: Final answer
    x = 11,952.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.