Home / 21,986.10-32,979.15-16,802.10

Finding the Fourth Proportional to 21,986.10, 32,979.15 and 16,802.10

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Solution

The fourth proportional to 21,986.10, 32,979.15 and 16,802.10 is: 25,203.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.10 : 32,979.15 = 16,802.10 : x
  2. Step 2: Convert to fraction form
    21,986.10/32,979.15 = 16,802.10/x
  3. Step 3: Cross multiply
    21,986.10x = 32,979.15 × 16,802.10
  4. Step 4: Simplify right side
    21,986.10x = 554,118,976.22
  5. Step 5: Solve for x
    x = 554,118,976.22/21,986.10
  6. Step 6: Final answer
    x = 25,203.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.