Home / 26,940.72-40,432.14-18,678.93

Finding the Fourth Proportional to 26,940.72, 40,432.14 and 18,678.93

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Solution

The fourth proportional to 26,940.72, 40,432.14 and 18,678.93 is: 28,033.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,940.72 : 40,432.14 = 18,678.93 : x
  2. Step 2: Convert to fraction form
    26,940.72/40,432.14 = 18,678.93/x
  3. Step 3: Cross multiply
    26,940.72x = 40,432.14 × 18,678.93
  4. Step 4: Simplify right side
    26,940.72x = 755,229,112.81
  5. Step 5: Solve for x
    x = 755,229,112.81/26,940.72
  6. Step 6: Final answer
    x = 28,033.00

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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.