Home / 18,667.23-25,785.32-13,943.31

Finding the Fourth Proportional to 18,667.23, 25,785.32 and 13,943.31

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Solution

The fourth proportional to 18,667.23, 25,785.32 and 13,943.31 is: 19,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.23 : 25,785.32 = 13,943.31 : x
  2. Step 2: Convert to fraction form
    18,667.23/25,785.32 = 13,943.31/x
  3. Step 3: Cross multiply
    18,667.23x = 25,785.32 × 13,943.31
  4. Step 4: Simplify right side
    18,667.23x = 359,532,640.49
  5. Step 5: Solve for x
    x = 359,532,640.49/18,667.23
  6. Step 6: Final answer
    x = 19,260.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.