Home / 21,689.36-32,523.60-13,787.52

Finding the Fourth Proportional to 21,689.36, 32,523.60 and 13,787.52

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Solution

The fourth proportional to 21,689.36, 32,523.60 and 13,787.52 is: 20,674.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,689.36 : 32,523.60 = 13,787.52 : x
  2. Step 2: Convert to fraction form
    21,689.36/32,523.60 = 13,787.52/x
  3. Step 3: Cross multiply
    21,689.36x = 32,523.60 × 13,787.52
  4. Step 4: Simplify right side
    21,689.36x = 448,419,785.47
  5. Step 5: Solve for x
    x = 448,419,785.47/21,689.36
  6. Step 6: Final answer
    x = 20,674.64

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1.5x scale

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.