Home / 28,390.50-42,572.77-10,608.11

Finding the Fourth Proportional to 28,390.50, 42,572.77 and 10,608.11

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Solution

The fourth proportional to 28,390.50, 42,572.77 and 10,608.11 is: 15,907.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,390.50 : 42,572.77 = 10,608.11 : x
  2. Step 2: Convert to fraction form
    28,390.50/42,572.77 = 10,608.11/x
  3. Step 3: Cross multiply
    28,390.50x = 42,572.77 × 10,608.11
  4. Step 4: Simplify right side
    28,390.50x = 451,616,547.43
  5. Step 5: Solve for x
    x = 451,616,547.43/28,390.50
  6. Step 6: Final answer
    x = 15,907.31

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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.