Home / 42,979.34-59,284.40-28,634.64

Finding the Fourth Proportional to 42,979.34, 59,284.40 and 28,634.64

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Solution

The fourth proportional to 42,979.34, 59,284.40 and 28,634.64 is: 39,497.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,979.34 : 59,284.40 = 28,634.64 : x
  2. Step 2: Convert to fraction form
    42,979.34/59,284.40 = 28,634.64/x
  3. Step 3: Cross multiply
    42,979.34x = 59,284.40 × 28,634.64
  4. Step 4: Simplify right side
    42,979.34x = 1,697,587,308.44
  5. Step 5: Solve for x
    x = 1,697,587,308.44/42,979.34
  6. Step 6: Final answer
    x = 39,497.76

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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.