Home / 21,253.28-31,880.42-9,404.52

Finding the Fourth Proportional to 21,253.28, 31,880.42 and 9,404.52

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Solution

The fourth proportional to 21,253.28, 31,880.42 and 9,404.52 is: 14,107.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.28 : 31,880.42 = 9,404.52 : x
  2. Step 2: Convert to fraction form
    21,253.28/31,880.42 = 9,404.52/x
  3. Step 3: Cross multiply
    21,253.28x = 31,880.42 × 9,404.52
  4. Step 4: Simplify right side
    21,253.28x = 299,820,000.48
  5. Step 5: Solve for x
    x = 299,820,000.48/21,253.28
  6. Step 6: Final answer
    x = 14,107.00

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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.