Home / 28,415.38-39,212.28-17,810.86

Finding the Fourth Proportional to 28,415.38, 39,212.28 and 17,810.86

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Solution

The fourth proportional to 28,415.38, 39,212.28 and 17,810.86 is: 24,578.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,415.38 : 39,212.28 = 17,810.86 : x
  2. Step 2: Convert to fraction form
    28,415.38/39,212.28 = 17,810.86/x
  3. Step 3: Cross multiply
    28,415.38x = 39,212.28 × 17,810.86
  4. Step 4: Simplify right side
    28,415.38x = 698,404,429.36
  5. Step 5: Solve for x
    x = 698,404,429.36/28,415.38
  6. Step 6: Final answer
    x = 24,578.39

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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.