Home / 25,169.45-34,714.16-15,603.99

Finding the Fourth Proportional to 25,169.45, 34,714.16 and 15,603.99

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Solution

The fourth proportional to 25,169.45, 34,714.16 and 15,603.99 is: 21,521.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,169.45 : 34,714.16 = 15,603.99 : x
  2. Step 2: Convert to fraction form
    25,169.45/34,714.16 = 15,603.99/x
  3. Step 3: Cross multiply
    25,169.45x = 34,714.16 × 15,603.99
  4. Step 4: Simplify right side
    25,169.45x = 541,679,255.82
  5. Step 5: Solve for x
    x = 541,679,255.82/25,169.45
  6. Step 6: Final answer
    x = 21,521.30

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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.