Home / 22,288.50-30,758.40-12,859.02

Finding the Fourth Proportional to 22,288.50, 30,758.40 and 12,859.02

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Solution

The fourth proportional to 22,288.50, 30,758.40 and 12,859.02 is: 17,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,288.50 : 30,758.40 = 12,859.02 : x
  2. Step 2: Convert to fraction form
    22,288.50/30,758.40 = 12,859.02/x
  3. Step 3: Cross multiply
    22,288.50x = 30,758.40 × 12,859.02
  4. Step 4: Simplify right side
    22,288.50x = 395,522,880.77
  5. Step 5: Solve for x
    x = 395,522,880.77/22,288.50
  6. Step 6: Final answer
    x = 17,745.60

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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.