Home / 28,620.52-39,494.95-15,872.71

Finding the Fourth Proportional to 28,620.52, 39,494.95 and 15,872.71

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Solution

The fourth proportional to 28,620.52, 39,494.95 and 15,872.71 is: 21,903.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.52 : 39,494.95 = 15,872.71 : x
  2. Step 2: Convert to fraction form
    28,620.52/39,494.95 = 15,872.71/x
  3. Step 3: Cross multiply
    28,620.52x = 39,494.95 × 15,872.71
  4. Step 4: Simplify right side
    28,620.52x = 626,891,887.81
  5. Step 5: Solve for x
    x = 626,891,887.81/28,620.52
  6. Step 6: Final answer
    x = 21,903.58

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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.