Home / 21,223.80-29,280.66-16,182.80

Finding the Fourth Proportional to 21,223.80, 29,280.66 and 16,182.80

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Solution

The fourth proportional to 21,223.80, 29,280.66 and 16,182.80 is: 22,326.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223.80 : 29,280.66 = 16,182.80 : x
  2. Step 2: Convert to fraction form
    21,223.80/29,280.66 = 16,182.80/x
  3. Step 3: Cross multiply
    21,223.80x = 29,280.66 × 16,182.80
  4. Step 4: Simplify right side
    21,223.80x = 473,843,064.65
  5. Step 5: Solve for x
    x = 473,843,064.65/21,223.80
  6. Step 6: Final answer
    x = 22,326.02

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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.