Home / 28,266.30-42,400.13-8,544.78

Finding the Fourth Proportional to 28,266.30, 42,400.13 and 8,544.78

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Solution

The fourth proportional to 28,266.30, 42,400.13 and 8,544.78 is: 12,817.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.30 : 42,400.13 = 8,544.78 : x
  2. Step 2: Convert to fraction form
    28,266.30/42,400.13 = 8,544.78/x
  3. Step 3: Cross multiply
    28,266.30x = 42,400.13 × 8,544.78
  4. Step 4: Simplify right side
    28,266.30x = 362,299,740.10
  5. Step 5: Solve for x
    x = 362,299,740.10/28,266.30
  6. Step 6: Final answer
    x = 12,817.37

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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.