Home / 28,647.13-42,970.52-15,582.54

Finding the Fourth Proportional to 28,647.13, 42,970.52 and 15,582.54

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Solution

The fourth proportional to 28,647.13, 42,970.52 and 15,582.54 is: 23,373.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.13 : 42,970.52 = 15,582.54 : x
  2. Step 2: Convert to fraction form
    28,647.13/42,970.52 = 15,582.54/x
  3. Step 3: Cross multiply
    28,647.13x = 42,970.52 × 15,582.54
  4. Step 4: Simplify right side
    28,647.13x = 669,589,631.87
  5. Step 5: Solve for x
    x = 669,589,631.87/28,647.13
  6. Step 6: Final answer
    x = 23,373.71

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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.