Home / 28,368.62-42,551.37-8,645.52

Finding the Fourth Proportional to 28,368.62, 42,551.37 and 8,645.52

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Solution

The fourth proportional to 28,368.62, 42,551.37 and 8,645.52 is: 12,967.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.62 : 42,551.37 = 8,645.52 : x
  2. Step 2: Convert to fraction form
    28,368.62/42,551.37 = 8,645.52/x
  3. Step 3: Cross multiply
    28,368.62x = 42,551.37 × 8,645.52
  4. Step 4: Simplify right side
    28,368.62x = 367,878,720.36
  5. Step 5: Solve for x
    x = 367,878,720.36/28,368.62
  6. Step 6: Final answer
    x = 12,967.81

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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.