Home / 18,829.52-28,253.56-13,318.28

Finding the Fourth Proportional to 18,829.52, 28,253.56 and 13,318.28

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Solution

The fourth proportional to 18,829.52, 28,253.56 and 13,318.28 is: 19,983.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.52 : 28,253.56 = 13,318.28 : x
  2. Step 2: Convert to fraction form
    18,829.52/28,253.56 = 13,318.28/x
  3. Step 3: Cross multiply
    18,829.52x = 28,253.56 × 13,318.28
  4. Step 4: Simplify right side
    18,829.52x = 376,288,823.08
  5. Step 5: Solve for x
    x = 376,288,823.08/18,829.52
  6. Step 6: Final answer
    x = 19,983.98

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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.