Home / 21,235.02-31,877.14-11,393.52

Finding the Fourth Proportional to 21,235.02, 31,877.14 and 11,393.52

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Solution

The fourth proportional to 21,235.02, 31,877.14 and 11,393.52 is: 17,103.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235.02 : 31,877.14 = 11,393.52 : x
  2. Step 2: Convert to fraction form
    21,235.02/31,877.14 = 11,393.52/x
  3. Step 3: Cross multiply
    21,235.02x = 31,877.14 × 11,393.52
  4. Step 4: Simplify right side
    21,235.02x = 363,192,832.13
  5. Step 5: Solve for x
    x = 363,192,832.13/21,235.02
  6. Step 6: Final answer
    x = 17,103.48

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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.