Home / 21,273.42-29,368.98-19,029.90

Finding the Fourth Proportional to 21,273.42, 29,368.98 and 19,029.90

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Solution

The fourth proportional to 21,273.42, 29,368.98 and 19,029.90 is: 26,271.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.42 : 29,368.98 = 19,029.90 : x
  2. Step 2: Convert to fraction form
    21,273.42/29,368.98 = 19,029.90/x
  3. Step 3: Cross multiply
    21,273.42x = 29,368.98 × 19,029.90
  4. Step 4: Simplify right side
    21,273.42x = 558,888,752.50
  5. Step 5: Solve for x
    x = 558,888,752.50/21,273.42
  6. Step 6: Final answer
    x = 26,271.69

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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.