Home / 42,971.60-64,449.96-11,799.56

Finding the Fourth Proportional to 42,971.60, 64,449.96 and 11,799.56

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Solution

The fourth proportional to 42,971.60, 64,449.96 and 11,799.56 is: 17,697.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,971.60 : 64,449.96 = 11,799.56 : x
  2. Step 2: Convert to fraction form
    42,971.60/64,449.96 = 11,799.56/x
  3. Step 3: Cross multiply
    42,971.60x = 64,449.96 × 11,799.56
  4. Step 4: Simplify right side
    42,971.60x = 760,481,170.02
  5. Step 5: Solve for x
    x = 760,481,170.02/42,971.60
  6. Step 6: Final answer
    x = 17,697.30

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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.