Home / 21,092.15-31,637.43-5,297.28

Finding the Fourth Proportional to 21,092.15, 31,637.43 and 5,297.28

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Solution

The fourth proportional to 21,092.15, 31,637.43 and 5,297.28 is: 7,945.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.15 : 31,637.43 = 5,297.28 : x
  2. Step 2: Convert to fraction form
    21,092.15/31,637.43 = 5,297.28/x
  3. Step 3: Cross multiply
    21,092.15x = 31,637.43 × 5,297.28
  4. Step 4: Simplify right side
    21,092.15x = 167,592,325.19
  5. Step 5: Solve for x
    x = 167,592,325.19/21,092.15
  6. Step 6: Final answer
    x = 7,945.72

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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.