Home / 26,931.33-40,378.26-11,930.31

Finding the Fourth Proportional to 26,931.33, 40,378.26 and 11,930.31

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Solution

The fourth proportional to 26,931.33, 40,378.26 and 11,930.31 is: 17,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,931.33 : 40,378.26 = 11,930.31 : x
  2. Step 2: Convert to fraction form
    26,931.33/40,378.26 = 11,930.31/x
  3. Step 3: Cross multiply
    26,931.33x = 40,378.26 × 11,930.31
  4. Step 4: Simplify right side
    26,931.33x = 481,725,159.06
  5. Step 5: Solve for x
    x = 481,725,159.06/26,931.33
  6. Step 6: Final answer
    x = 17,887.17

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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.