Home / 15,537.15-21,388.73-14,040.36

Finding the Fourth Proportional to 15,537.15, 21,388.73 and 14,040.36

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Solution

The fourth proportional to 15,537.15, 21,388.73 and 14,040.36 is: 19,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,537.15 : 21,388.73 = 14,040.36 : x
  2. Step 2: Convert to fraction form
    15,537.15/21,388.73 = 14,040.36/x
  3. Step 3: Cross multiply
    15,537.15x = 21,388.73 × 14,040.36
  4. Step 4: Simplify right side
    15,537.15x = 300,305,398.94
  5. Step 5: Solve for x
    x = 300,305,398.94/15,537.15
  6. Step 6: Final answer
    x = 19,328.22

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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.