Home / 22,020.80-32,986.40-13,675.20

Finding the Fourth Proportional to 22,020.80, 32,986.40 and 13,675.20

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Solution

The fourth proportional to 22,020.80, 32,986.40 and 13,675.20 is: 20,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,020.80 : 32,986.40 = 13,675.20 : x
  2. Step 2: Convert to fraction form
    22,020.80/32,986.40 = 13,675.20/x
  3. Step 3: Cross multiply
    22,020.80x = 32,986.40 × 13,675.20
  4. Step 4: Simplify right side
    22,020.80x = 451,095,617.28
  5. Step 5: Solve for x
    x = 451,095,617.28/22,020.80
  6. Step 6: Final answer
    x = 20,484.98

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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.