Home / 18,889.53-28,332.47-5,742.02

Finding the Fourth Proportional to 18,889.53, 28,332.47 and 5,742.02

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Solution

The fourth proportional to 18,889.53, 28,332.47 and 5,742.02 is: 8,612.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.53 : 28,332.47 = 5,742.02 : x
  2. Step 2: Convert to fraction form
    18,889.53/28,332.47 = 5,742.02/x
  3. Step 3: Cross multiply
    18,889.53x = 28,332.47 × 5,742.02
  4. Step 4: Simplify right side
    18,889.53x = 162,685,439.02
  5. Step 5: Solve for x
    x = 162,685,439.02/18,889.53
  6. Step 6: Final answer
    x = 8,612.47

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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.