Home / 25,347.87-34,979.05-15,140.62

Finding the Fourth Proportional to 25,347.87, 34,979.05 and 15,140.62

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Solution

The fourth proportional to 25,347.87, 34,979.05 and 15,140.62 is: 20,893.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,347.87 : 34,979.05 = 15,140.62 : x
  2. Step 2: Convert to fraction form
    25,347.87/34,979.05 = 15,140.62/x
  3. Step 3: Cross multiply
    25,347.87x = 34,979.05 × 15,140.62
  4. Step 4: Simplify right side
    25,347.87x = 529,604,504.01
  5. Step 5: Solve for x
    x = 529,604,504.01/25,347.87
  6. Step 6: Final answer
    x = 20,893.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.