Home / 39,731.52-54,829.71-21,826.08

Finding the Fourth Proportional to 39,731.52, 54,829.71 and 21,826.08

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Solution

The fourth proportional to 39,731.52, 54,829.71 and 21,826.08 is: 30,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,731.52 : 54,829.71 = 21,826.08 : x
  2. Step 2: Convert to fraction form
    39,731.52/54,829.71 = 21,826.08/x
  3. Step 3: Cross multiply
    39,731.52x = 54,829.71 × 21,826.08
  4. Step 4: Simplify right side
    39,731.52x = 1,196,717,636.84
  5. Step 5: Solve for x
    x = 1,196,717,636.84/39,731.52
  6. Step 6: Final answer
    x = 30,120.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.