Home / 21,782.14-32,677.46-6,989.92

Finding the Fourth Proportional to 21,782.14, 32,677.46 and 6,989.92

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Solution

The fourth proportional to 21,782.14, 32,677.46 and 6,989.92 is: 10,486.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,782.14 : 32,677.46 = 6,989.92 : x
  2. Step 2: Convert to fraction form
    21,782.14/32,677.46 = 6,989.92/x
  3. Step 3: Cross multiply
    21,782.14x = 32,677.46 × 6,989.92
  4. Step 4: Simplify right side
    21,782.14x = 228,412,831.20
  5. Step 5: Solve for x
    x = 228,412,831.20/21,782.14
  6. Step 6: Final answer
    x = 10,486.24

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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.