Home / 21,782.39-32,677.83-6,990.17

Finding the Fourth Proportional to 21,782.39, 32,677.83 and 6,990.17

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Solution

The fourth proportional to 21,782.39, 32,677.83 and 6,990.17 is: 10,486.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,782.39 : 32,677.83 = 6,990.17 : x
  2. Step 2: Convert to fraction form
    21,782.39/32,677.83 = 6,990.17/x
  3. Step 3: Cross multiply
    21,782.39x = 32,677.83 × 6,990.17
  4. Step 4: Simplify right side
    21,782.39x = 228,423,586.93
  5. Step 5: Solve for x
    x = 228,423,586.93/21,782.39
  6. Step 6: Final answer
    x = 10,486.62

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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.