Home / 28,236.81-42,359.13-9,522.21

Finding the Fourth Proportional to 28,236.81, 42,359.13 and 9,522.21

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Solution

The fourth proportional to 28,236.81, 42,359.13 and 9,522.21 is: 14,284.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.81 : 42,359.13 = 9,522.21 : x
  2. Step 2: Convert to fraction form
    28,236.81/42,359.13 = 9,522.21/x
  3. Step 3: Cross multiply
    28,236.81x = 42,359.13 × 9,522.21
  4. Step 4: Simplify right side
    28,236.81x = 403,352,531.28
  5. Step 5: Solve for x
    x = 403,352,531.28/28,236.81
  6. Step 6: Final answer
    x = 14,284.64

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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.