Home / 28,434.35-42,659.73-8,715.81

Finding the Fourth Proportional to 28,434.35, 42,659.73 and 8,715.81

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Solution

The fourth proportional to 28,434.35, 42,659.73 and 8,715.81 is: 13,076.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,434.35 : 42,659.73 = 8,715.81 : x
  2. Step 2: Convert to fraction form
    28,434.35/42,659.73 = 8,715.81/x
  3. Step 3: Cross multiply
    28,434.35x = 42,659.73 × 8,715.81
  4. Step 4: Simplify right side
    28,434.35x = 371,814,101.33
  5. Step 5: Solve for x
    x = 371,814,101.33/28,434.35
  6. Step 6: Final answer
    x = 13,076.23

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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.