Home / 28,446.62-39,255.59-15,699.63

Finding the Fourth Proportional to 28,446.62, 39,255.59 and 15,699.63

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Solution

The fourth proportional to 28,446.62, 39,255.59 and 15,699.63 is: 21,665.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.62 : 39,255.59 = 15,699.63 : x
  2. Step 2: Convert to fraction form
    28,446.62/39,255.59 = 15,699.63/x
  3. Step 3: Cross multiply
    28,446.62x = 39,255.59 × 15,699.63
  4. Step 4: Simplify right side
    28,446.62x = 616,298,277.68
  5. Step 5: Solve for x
    x = 616,298,277.68/28,446.62
  6. Step 6: Final answer
    x = 21,665.08

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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.