Home / 43,688.50-65,516.10-15,603.31

Finding the Fourth Proportional to 43,688.50, 65,516.10 and 15,603.31

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Solution

The fourth proportional to 43,688.50, 65,516.10 and 15,603.31 is: 23,399.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,688.50 : 65,516.10 = 15,603.31 : x
  2. Step 2: Convert to fraction form
    43,688.50/65,516.10 = 15,603.31/x
  3. Step 3: Cross multiply
    43,688.50x = 65,516.10 × 15,603.31
  4. Step 4: Simplify right side
    43,688.50x = 1,022,267,979.28
  5. Step 5: Solve for x
    x = 1,022,267,979.28/43,688.50
  6. Step 6: Final answer
    x = 23,399.02

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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.