Home / 21,625.04-29,798.27-15,950.80

Finding the Fourth Proportional to 21,625.04, 29,798.27 and 15,950.80

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Solution

The fourth proportional to 21,625.04, 29,798.27 and 15,950.80 is: 21,979.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.04 : 29,798.27 = 15,950.80 : x
  2. Step 2: Convert to fraction form
    21,625.04/29,798.27 = 15,950.80/x
  3. Step 3: Cross multiply
    21,625.04x = 29,798.27 × 15,950.80
  4. Step 4: Simplify right side
    21,625.04x = 475,306,245.12
  5. Step 5: Solve for x
    x = 475,306,245.12/21,625.04
  6. Step 6: Final answer
    x = 21,979.44

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1.5x scale

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.