Home / 15,585.31-23,378.02-3,898.53

Finding the Fourth Proportional to 15,585.31, 23,378.02 and 3,898.53

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Solution

The fourth proportional to 15,585.31, 23,378.02 and 3,898.53 is: 5,847.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585.31 : 23,378.02 = 3,898.53 : x
  2. Step 2: Convert to fraction form
    15,585.31/23,378.02 = 3,898.53/x
  3. Step 3: Cross multiply
    15,585.31x = 23,378.02 × 3,898.53
  4. Step 4: Simplify right side
    15,585.31x = 91,139,902.56
  5. Step 5: Solve for x
    x = 91,139,902.56/15,585.31
  6. Step 6: Final answer
    x = 5,847.81

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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.