Home / 28,224.79-42,335.01-10,447.09

Finding the Fourth Proportional to 28,224.79, 42,335.01 and 10,447.09

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Solution

The fourth proportional to 28,224.79, 42,335.01 and 10,447.09 is: 15,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,224.79 : 42,335.01 = 10,447.09 : x
  2. Step 2: Convert to fraction form
    28,224.79/42,335.01 = 10,447.09/x
  3. Step 3: Cross multiply
    28,224.79x = 42,335.01 × 10,447.09
  4. Step 4: Simplify right side
    28,224.79x = 442,277,791.92
  5. Step 5: Solve for x
    x = 442,277,791.92/28,224.79
  6. Step 6: Final answer
    x = 15,669.84

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1.5x scale

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.