Home / 19,787.52-29,571.84-17,731.68

Finding the Fourth Proportional to 19,787.52, 29,571.84 and 17,731.68

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Solution

The fourth proportional to 19,787.52, 29,571.84 and 17,731.68 is: 26,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.52 : 29,571.84 = 17,731.68 : x
  2. Step 2: Convert to fraction form
    19,787.52/29,571.84 = 17,731.68/x
  3. Step 3: Cross multiply
    19,787.52x = 29,571.84 × 17,731.68
  4. Step 4: Simplify right side
    19,787.52x = 524,358,403.89
  5. Step 5: Solve for x
    x = 524,358,403.89/19,787.52
  6. Step 6: Final answer
    x = 26,499.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.