Home / 21,404.81-29,539.50-11,844.53

Finding the Fourth Proportional to 21,404.81, 29,539.50 and 11,844.53

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Solution

The fourth proportional to 21,404.81, 29,539.50 and 11,844.53 is: 16,345.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.81 : 29,539.50 = 11,844.53 : x
  2. Step 2: Convert to fraction form
    21,404.81/29,539.50 = 11,844.53/x
  3. Step 3: Cross multiply
    21,404.81x = 29,539.50 × 11,844.53
  4. Step 4: Simplify right side
    21,404.81x = 349,881,346.24
  5. Step 5: Solve for x
    x = 349,881,346.24/21,404.81
  6. Step 6: Final answer
    x = 16,345.93

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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.