Home / 28,498.86-42,704.55-17,388.90

Finding the Fourth Proportional to 28,498.86, 42,704.55 and 17,388.90

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Solution

The fourth proportional to 28,498.86, 42,704.55 and 17,388.90 is: 26,056.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.86 : 42,704.55 = 17,388.90 : x
  2. Step 2: Convert to fraction form
    28,498.86/42,704.55 = 17,388.90/x
  3. Step 3: Cross multiply
    28,498.86x = 42,704.55 × 17,388.90
  4. Step 4: Simplify right side
    28,498.86x = 742,585,149.50
  5. Step 5: Solve for x
    x = 742,585,149.50/28,498.86
  6. Step 6: Final answer
    x = 26,056.66

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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.