Home / 21,708.74-32,544.65-20,675.39

Finding the Fourth Proportional to 21,708.74, 32,544.65 and 20,675.39

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Solution

The fourth proportional to 21,708.74, 32,544.65 and 20,675.39 is: 30,995.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708.74 : 32,544.65 = 20,675.39 : x
  2. Step 2: Convert to fraction form
    21,708.74/32,544.65 = 20,675.39/x
  3. Step 3: Cross multiply
    21,708.74x = 32,544.65 × 20,675.39
  4. Step 4: Simplify right side
    21,708.74x = 672,873,220.13
  5. Step 5: Solve for x
    x = 672,873,220.13/21,708.74
  6. Step 6: Final answer
    x = 30,995.50

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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.