Home / 19,966.72-27,531.60-12,787.24

Finding the Fourth Proportional to 19,966.72, 27,531.60 and 12,787.24

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Solution

The fourth proportional to 19,966.72, 27,531.60 and 12,787.24 is: 17,632.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966.72 : 27,531.60 = 12,787.24 : x
  2. Step 2: Convert to fraction form
    19,966.72/27,531.60 = 12,787.24/x
  3. Step 3: Cross multiply
    19,966.72x = 27,531.60 × 12,787.24
  4. Step 4: Simplify right side
    19,966.72x = 352,053,176.78
  5. Step 5: Solve for x
    x = 352,053,176.78/19,966.72
  6. Step 6: Final answer
    x = 17,632.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.