Home / 21,113.28-31,674.60-6,323.52

Finding the Fourth Proportional to 21,113.28, 31,674.60 and 6,323.52

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Solution

The fourth proportional to 21,113.28, 31,674.60 and 6,323.52 is: 9,486.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,113.28 : 31,674.60 = 6,323.52 : x
  2. Step 2: Convert to fraction form
    21,113.28/31,674.60 = 6,323.52/x
  3. Step 3: Cross multiply
    21,113.28x = 31,674.60 × 6,323.52
  4. Step 4: Simplify right side
    21,113.28x = 200,294,966.59
  5. Step 5: Solve for x
    x = 200,294,966.59/21,113.28
  6. Step 6: Final answer
    x = 9,486.68

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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.