Home / 21,218.08-31,768.80-16,008.16

Finding the Fourth Proportional to 21,218.08, 31,768.80 and 16,008.16

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Solution

The fourth proportional to 21,218.08, 31,768.80 and 16,008.16 is: 23,968.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,218.08 : 31,768.80 = 16,008.16 : x
  2. Step 2: Convert to fraction form
    21,218.08/31,768.80 = 16,008.16/x
  3. Step 3: Cross multiply
    21,218.08x = 31,768.80 × 16,008.16
  4. Step 4: Simplify right side
    21,218.08x = 508,560,033.41
  5. Step 5: Solve for x
    x = 508,560,033.41/21,218.08
  6. Step 6: Final answer
    x = 23,968.24

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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.