Home / 18,315.33-25,287.39-14,058.78

Finding the Fourth Proportional to 18,315.33, 25,287.39 and 14,058.78

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Solution

The fourth proportional to 18,315.33, 25,287.39 and 14,058.78 is: 19,410.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.33 : 25,287.39 = 14,058.78 : x
  2. Step 2: Convert to fraction form
    18,315.33/25,287.39 = 14,058.78/x
  3. Step 3: Cross multiply
    18,315.33x = 25,287.39 × 14,058.78
  4. Step 4: Simplify right side
    18,315.33x = 355,509,852.78
  5. Step 5: Solve for x
    x = 355,509,852.78/18,315.33
  6. Step 6: Final answer
    x = 19,410.51

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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.