Home / 42,944.88-64,407.60-19,578

Finding the Fourth Proportional to 42,944.88, 64,407.60 and 19,578

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Solution

The fourth proportional to 42,944.88, 64,407.60 and 19,578 is: 29,362.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,944.88 : 64,407.60 = 19,578 : x
  2. Step 2: Convert to fraction form
    42,944.88/64,407.60 = 19,578/x
  3. Step 3: Cross multiply
    42,944.88x = 64,407.60 × 19,578
  4. Step 4: Simplify right side
    42,944.88x = 1,260,971,992.80
  5. Step 5: Solve for x
    x = 1,260,971,992.80/42,944.88
  6. Step 6: Final answer
    x = 29,362.57

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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.