Home / 19,957.95-29,947.32-8,872.56

Finding the Fourth Proportional to 19,957.95, 29,947.32 and 8,872.56

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Solution

The fourth proportional to 19,957.95, 29,947.32 and 8,872.56 is: 13,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957.95 : 29,947.32 = 8,872.56 : x
  2. Step 2: Convert to fraction form
    19,957.95/29,947.32 = 8,872.56/x
  3. Step 3: Cross multiply
    19,957.95x = 29,947.32 × 8,872.56
  4. Step 4: Simplify right side
    19,957.95x = 265,709,393.54
  5. Step 5: Solve for x
    x = 265,709,393.54/19,957.95
  6. Step 6: Final answer
    x = 13,313.46

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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.