Home / 25,401.98-35,058.72-15,331.85

Finding the Fourth Proportional to 25,401.98, 35,058.72 and 15,331.85

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Solution

The fourth proportional to 25,401.98, 35,058.72 and 15,331.85 is: 21,160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,401.98 : 35,058.72 = 15,331.85 : x
  2. Step 2: Convert to fraction form
    25,401.98/35,058.72 = 15,331.85/x
  3. Step 3: Cross multiply
    25,401.98x = 35,058.72 × 15,331.85
  4. Step 4: Simplify right side
    25,401.98x = 537,514,860.94
  5. Step 5: Solve for x
    x = 537,514,860.94/25,401.98
  6. Step 6: Final answer
    x = 21,160.36

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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.