Home / 21,739.80-32,585.40-9,257.70

Finding the Fourth Proportional to 21,739.80, 32,585.40 and 9,257.70

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Solution

The fourth proportional to 21,739.80, 32,585.40 and 9,257.70 is: 13,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.80 : 32,585.40 = 9,257.70 : x
  2. Step 2: Convert to fraction form
    21,739.80/32,585.40 = 9,257.70/x
  3. Step 3: Cross multiply
    21,739.80x = 32,585.40 × 9,257.70
  4. Step 4: Simplify right side
    21,739.80x = 301,665,857.58
  5. Step 5: Solve for x
    x = 301,665,857.58/21,739.80
  6. Step 6: Final answer
    x = 13,876.20

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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.