Home / 21,017.08-31,534.92-11,019.43

Finding the Fourth Proportional to 21,017.08, 31,534.92 and 11,019.43

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Solution

The fourth proportional to 21,017.08, 31,534.92 and 11,019.43 is: 16,534.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017.08 : 31,534.92 = 11,019.43 : x
  2. Step 2: Convert to fraction form
    21,017.08/31,534.92 = 11,019.43/x
  3. Step 3: Cross multiply
    21,017.08x = 31,534.92 × 11,019.43
  4. Step 4: Simplify right side
    21,017.08x = 347,496,843.50
  5. Step 5: Solve for x
    x = 347,496,843.50/21,017.08
  6. Step 6: Final answer
    x = 16,534.02

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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.