Home / 21,923.68-32,677.24-20,678.32

Finding the Fourth Proportional to 21,923.68, 32,677.24 and 20,678.32

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Solution

The fourth proportional to 21,923.68, 32,677.24 and 20,678.32 is: 30,821.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923.68 : 32,677.24 = 20,678.32 : x
  2. Step 2: Convert to fraction form
    21,923.68/32,677.24 = 20,678.32/x
  3. Step 3: Cross multiply
    21,923.68x = 32,677.24 × 20,678.32
  4. Step 4: Simplify right side
    21,923.68x = 675,710,425.44
  5. Step 5: Solve for x
    x = 675,710,425.44/21,923.68
  6. Step 6: Final answer
    x = 30,821.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.