Home / 21,329.84-31,992.60-5,749.04

Finding the Fourth Proportional to 21,329.84, 31,992.60 and 5,749.04

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Solution

The fourth proportional to 21,329.84, 31,992.60 and 5,749.04 is: 8,622.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.84 : 31,992.60 = 5,749.04 : x
  2. Step 2: Convert to fraction form
    21,329.84/31,992.60 = 5,749.04/x
  3. Step 3: Cross multiply
    21,329.84x = 31,992.60 × 5,749.04
  4. Step 4: Simplify right side
    21,329.84x = 183,926,737.10
  5. Step 5: Solve for x
    x = 183,926,737.10/21,329.84
  6. Step 6: Final answer
    x = 8,622.98

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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.