Home / 21,628.81-29,833.98-19,070.02

Finding the Fourth Proportional to 21,628.81, 29,833.98 and 19,070.02

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Solution

The fourth proportional to 21,628.81, 29,833.98 and 19,070.02 is: 26,304.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,628.81 : 29,833.98 = 19,070.02 : x
  2. Step 2: Convert to fraction form
    21,628.81/29,833.98 = 19,070.02/x
  3. Step 3: Cross multiply
    21,628.81x = 29,833.98 × 19,070.02
  4. Step 4: Simplify right side
    21,628.81x = 568,934,499.93
  5. Step 5: Solve for x
    x = 568,934,499.93/21,628.81
  6. Step 6: Final answer
    x = 26,304.48

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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.