Home / 18,045.23-24,907.45-12,380.90

Finding the Fourth Proportional to 18,045.23, 24,907.45 and 12,380.90

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Solution

The fourth proportional to 18,045.23, 24,907.45 and 12,380.90 is: 17,089.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045.23 : 24,907.45 = 12,380.90 : x
  2. Step 2: Convert to fraction form
    18,045.23/24,907.45 = 12,380.90/x
  3. Step 3: Cross multiply
    18,045.23x = 24,907.45 × 12,380.90
  4. Step 4: Simplify right side
    18,045.23x = 308,376,647.71
  5. Step 5: Solve for x
    x = 308,376,647.71/18,045.23
  6. Step 6: Final answer
    x = 17,089.09

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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.