Home / 21,739.12-32,595.56-11,864.68

Finding the Fourth Proportional to 21,739.12, 32,595.56 and 11,864.68

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Solution

The fourth proportional to 21,739.12, 32,595.56 and 11,864.68 is: 17,789.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.12 : 32,595.56 = 11,864.68 : x
  2. Step 2: Convert to fraction form
    21,739.12/32,595.56 = 11,864.68/x
  3. Step 3: Cross multiply
    21,739.12x = 32,595.56 × 11,864.68
  4. Step 4: Simplify right side
    21,739.12x = 386,735,888.82
  5. Step 5: Solve for x
    x = 386,735,888.82/21,739.12
  6. Step 6: Final answer
    x = 17,789.86

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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.