Home / 25,129.80-37,688.38-10,342.84

Finding the Fourth Proportional to 25,129.80, 37,688.38 and 10,342.84

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Solution

The fourth proportional to 25,129.80, 37,688.38 and 10,342.84 is: 15,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,129.80 : 37,688.38 = 10,342.84 : x
  2. Step 2: Convert to fraction form
    25,129.80/37,688.38 = 10,342.84/x
  3. Step 3: Cross multiply
    25,129.80x = 37,688.38 × 10,342.84
  4. Step 4: Simplify right side
    25,129.80x = 389,804,884.20
  5. Step 5: Solve for x
    x = 389,804,884.20/25,129.80
  6. Step 6: Final answer
    x = 15,511.66

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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.