Home / 25,521.25-38,226.46-12,345.99

Finding the Fourth Proportional to 25,521.25, 38,226.46 and 12,345.99

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Solution

The fourth proportional to 25,521.25, 38,226.46 and 12,345.99 is: 18,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,521.25 : 38,226.46 = 12,345.99 : x
  2. Step 2: Convert to fraction form
    25,521.25/38,226.46 = 12,345.99/x
  3. Step 3: Cross multiply
    25,521.25x = 38,226.46 × 12,345.99
  4. Step 4: Simplify right side
    25,521.25x = 471,943,492.90
  5. Step 5: Solve for x
    x = 471,943,492.90/25,521.25
  6. Step 6: Final answer
    x = 18,492.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.