Home / 39,790.26-59,578.68-21,031.32

Finding the Fourth Proportional to 39,790.26, 59,578.68 and 21,031.32

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Solution

The fourth proportional to 39,790.26, 59,578.68 and 21,031.32 is: 31,490.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,790.26 : 59,578.68 = 21,031.32 : x
  2. Step 2: Convert to fraction form
    39,790.26/59,578.68 = 21,031.32/x
  3. Step 3: Cross multiply
    39,790.26x = 59,578.68 × 21,031.32
  4. Step 4: Simplify right side
    39,790.26x = 1,253,018,284.26
  5. Step 5: Solve for x
    x = 1,253,018,284.26/39,790.26
  6. Step 6: Final answer
    x = 31,490.58

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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.