Home / 43,415.40-65,128.44-15,329.76

Finding the Fourth Proportional to 43,415.40, 65,128.44 and 15,329.76

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Solution

The fourth proportional to 43,415.40, 65,128.44 and 15,329.76 is: 22,996.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,415.40 : 65,128.44 = 15,329.76 : x
  2. Step 2: Convert to fraction form
    43,415.40/65,128.44 = 15,329.76/x
  3. Step 3: Cross multiply
    43,415.40x = 65,128.44 × 15,329.76
  4. Step 4: Simplify right side
    43,415.40x = 998,403,354.37
  5. Step 5: Solve for x
    x = 998,403,354.37/43,415.40
  6. Step 6: Final answer
    x = 22,996.53

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1.5x scale

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.