Home / 28,102.13-42,140.84-14,951.37

Finding the Fourth Proportional to 28,102.13, 42,140.84 and 14,951.37

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Solution

The fourth proportional to 28,102.13, 42,140.84 and 14,951.37 is: 22,420.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.13 : 42,140.84 = 14,951.37 : x
  2. Step 2: Convert to fraction form
    28,102.13/42,140.84 = 14,951.37/x
  3. Step 3: Cross multiply
    28,102.13x = 42,140.84 × 14,951.37
  4. Step 4: Simplify right side
    28,102.13x = 630,063,290.95
  5. Step 5: Solve for x
    x = 630,063,290.95/28,102.13
  6. Step 6: Final answer
    x = 22,420.48

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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.