Home / 31,728.48-47,576.64-10,661.04

Finding the Fourth Proportional to 31,728.48, 47,576.64 and 10,661.04

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Solution

The fourth proportional to 31,728.48, 47,576.64 and 10,661.04 is: 15,986.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.48 : 47,576.64 = 10,661.04 : x
  2. Step 2: Convert to fraction form
    31,728.48/47,576.64 = 10,661.04/x
  3. Step 3: Cross multiply
    31,728.48x = 47,576.64 × 10,661.04
  4. Step 4: Simplify right side
    31,728.48x = 507,216,462.11
  5. Step 5: Solve for x
    x = 507,216,462.11/31,728.48
  6. Step 6: Final answer
    x = 15,986.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.