Home / 26,945.85-40,426.78-13,807.45

Finding the Fourth Proportional to 26,945.85, 40,426.78 and 13,807.45

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Solution

The fourth proportional to 26,945.85, 40,426.78 and 13,807.45 is: 20,715.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,945.85 : 40,426.78 = 13,807.45 : x
  2. Step 2: Convert to fraction form
    26,945.85/40,426.78 = 13,807.45/x
  3. Step 3: Cross multiply
    26,945.85x = 40,426.78 × 13,807.45
  4. Step 4: Simplify right side
    26,945.85x = 558,190,743.51
  5. Step 5: Solve for x
    x = 558,190,743.51/26,945.85
  6. Step 6: Final answer
    x = 20,715.28

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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.