Home / 21,783.39-32,679.33-6,991.17

Finding the Fourth Proportional to 21,783.39, 32,679.33 and 6,991.17

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Solution

The fourth proportional to 21,783.39, 32,679.33 and 6,991.17 is: 10,488.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783.39 : 32,679.33 = 6,991.17 : x
  2. Step 2: Convert to fraction form
    21,783.39/32,679.33 = 6,991.17/x
  3. Step 3: Cross multiply
    21,783.39x = 32,679.33 × 6,991.17
  4. Step 4: Simplify right side
    21,783.39x = 228,466,751.52
  5. Step 5: Solve for x
    x = 228,466,751.52/21,783.39
  6. Step 6: Final answer
    x = 10,488.12

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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.