Home / 42,569.96-63,789.32-18,873.81

Finding the Fourth Proportional to 42,569.96, 63,789.32 and 18,873.81

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Solution

The fourth proportional to 42,569.96, 63,789.32 and 18,873.81 is: 28,281.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,569.96 : 63,789.32 = 18,873.81 : x
  2. Step 2: Convert to fraction form
    42,569.96/63,789.32 = 18,873.81/x
  3. Step 3: Cross multiply
    42,569.96x = 63,789.32 × 18,873.81
  4. Step 4: Simplify right side
    42,569.96x = 1,203,947,552.89
  5. Step 5: Solve for x
    x = 1,203,947,552.89/42,569.96
  6. Step 6: Final answer
    x = 28,281.63

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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.