Home / 28,015.84-42,029.99-12,223.43

Finding the Fourth Proportional to 28,015.84, 42,029.99 and 12,223.43

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Solution

The fourth proportional to 28,015.84, 42,029.99 and 12,223.43 is: 18,337.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,015.84 : 42,029.99 = 12,223.43 : x
  2. Step 2: Convert to fraction form
    28,015.84/42,029.99 = 12,223.43/x
  3. Step 3: Cross multiply
    28,015.84x = 42,029.99 × 12,223.43
  4. Step 4: Simplify right side
    28,015.84x = 513,750,640.67
  5. Step 5: Solve for x
    x = 513,750,640.67/28,015.84
  6. Step 6: Final answer
    x = 18,337.86

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1.5x scale

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.