Home / 28,458.54-39,272.04-15,882.48

Finding the Fourth Proportional to 28,458.54, 39,272.04 and 15,882.48

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Solution

The fourth proportional to 28,458.54, 39,272.04 and 15,882.48 is: 21,917.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458.54 : 39,272.04 = 15,882.48 : x
  2. Step 2: Convert to fraction form
    28,458.54/39,272.04 = 15,882.48/x
  3. Step 3: Cross multiply
    28,458.54x = 39,272.04 × 15,882.48
  4. Step 4: Simplify right side
    28,458.54x = 623,737,389.86
  5. Step 5: Solve for x
    x = 623,737,389.86/28,458.54
  6. Step 6: Final answer
    x = 21,917.41

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1.5x scale

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.