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Finding the Fourth Proportional to 26,955.78, 40,432.32 and 10,323.78

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Solution

The fourth proportional to 26,955.78, 40,432.32 and 10,323.78 is: 15,485.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,955.78 : 40,432.32 = 10,323.78 : x
  2. Step 2: Convert to fraction form
    26,955.78/40,432.32 = 10,323.78/x
  3. Step 3: Cross multiply
    26,955.78x = 40,432.32 × 10,323.78
  4. Step 4: Simplify right side
    26,955.78x = 417,414,376.57
  5. Step 5: Solve for x
    x = 417,414,376.57/26,955.78
  6. Step 6: Final answer
    x = 15,485.15

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1.5x scale

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.