Home / 25,743.72-35,541.48-19,318.50

Finding the Fourth Proportional to 25,743.72, 35,541.48 and 19,318.50

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Solution

The fourth proportional to 25,743.72, 35,541.48 and 19,318.50 is: 26,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,743.72 : 35,541.48 = 19,318.50 : x
  2. Step 2: Convert to fraction form
    25,743.72/35,541.48 = 19,318.50/x
  3. Step 3: Cross multiply
    25,743.72x = 35,541.48 × 19,318.50
  4. Step 4: Simplify right side
    25,743.72x = 686,608,153.82
  5. Step 5: Solve for x
    x = 686,608,153.82/25,743.72
  6. Step 6: Final answer
    x = 26,670.90

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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.