Home / 43,640.05-65,465.21-15,564.10

Finding the Fourth Proportional to 43,640.05, 65,465.21 and 15,564.10

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Solution

The fourth proportional to 43,640.05, 65,465.21 and 15,564.10 is: 23,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,640.05 : 65,465.21 = 15,564.10 : x
  2. Step 2: Convert to fraction form
    43,640.05/65,465.21 = 15,564.10/x
  3. Step 3: Cross multiply
    43,640.05x = 65,465.21 × 15,564.10
  4. Step 4: Simplify right side
    43,640.05x = 1,018,907,074.96
  5. Step 5: Solve for x
    x = 1,018,907,074.96/43,640.05
  6. Step 6: Final answer
    x = 23,347.98

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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.