Home / 21,442.44-29,562.96-13,875.36

Finding the Fourth Proportional to 21,442.44, 29,562.96 and 13,875.36

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Solution

The fourth proportional to 21,442.44, 29,562.96 and 13,875.36 is: 19,130.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,442.44 : 29,562.96 = 13,875.36 : x
  2. Step 2: Convert to fraction form
    21,442.44/29,562.96 = 13,875.36/x
  3. Step 3: Cross multiply
    21,442.44x = 29,562.96 × 13,875.36
  4. Step 4: Simplify right side
    21,442.44x = 410,196,712.67
  5. Step 5: Solve for x
    x = 410,196,712.67/21,442.44
  6. Step 6: Final answer
    x = 19,130.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.