Home / 20,893.16-31,343.24-10,363.72

Finding the Fourth Proportional to 20,893.16, 31,343.24 and 10,363.72

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Solution

The fourth proportional to 20,893.16, 31,343.24 and 10,363.72 is: 15,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.16 : 31,343.24 = 10,363.72 : x
  2. Step 2: Convert to fraction form
    20,893.16/31,343.24 = 10,363.72/x
  3. Step 3: Cross multiply
    20,893.16x = 31,343.24 × 10,363.72
  4. Step 4: Simplify right side
    20,893.16x = 324,832,563.25
  5. Step 5: Solve for x
    x = 324,832,563.25/20,893.16
  6. Step 6: Final answer
    x = 15,547.32

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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.