Home / 21,060.08-31,567.44-11,189.42

Finding the Fourth Proportional to 21,060.08, 31,567.44 and 11,189.42

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Solution

The fourth proportional to 21,060.08, 31,567.44 and 11,189.42 is: 16,772.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.08 : 31,567.44 = 11,189.42 : x
  2. Step 2: Convert to fraction form
    21,060.08/31,567.44 = 11,189.42/x
  3. Step 3: Cross multiply
    21,060.08x = 31,567.44 × 11,189.42
  4. Step 4: Simplify right side
    21,060.08x = 353,221,344.48
  5. Step 5: Solve for x
    x = 353,221,344.48/21,060.08
  6. Step 6: Final answer
    x = 16,772.08

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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.