Home / 15,428.32-23,142.49-4,899.46

Finding the Fourth Proportional to 15,428.32, 23,142.49 and 4,899.46

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Solution

The fourth proportional to 15,428.32, 23,142.49 and 4,899.46 is: 7,349.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.32 : 23,142.49 = 4,899.46 : x
  2. Step 2: Convert to fraction form
    15,428.32/23,142.49 = 4,899.46/x
  3. Step 3: Cross multiply
    15,428.32x = 23,142.49 × 4,899.46
  4. Step 4: Simplify right side
    15,428.32x = 113,385,704.06
  5. Step 5: Solve for x
    x = 113,385,704.06/15,428.32
  6. Step 6: Final answer
    x = 7,349.19

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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.