Home / 23,397.80-32,289-12,787.40

Finding the Fourth Proportional to 23,397.80, 32,289 and 12,787.40

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Solution

The fourth proportional to 23,397.80, 32,289 and 12,787.40 is: 17,646.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,397.80 : 32,289 = 12,787.40 : x
  2. Step 2: Convert to fraction form
    23,397.80/32,289 = 12,787.40/x
  3. Step 3: Cross multiply
    23,397.80x = 32,289 × 12,787.40
  4. Step 4: Simplify right side
    23,397.80x = 412,892,358.60
  5. Step 5: Solve for x
    x = 412,892,358.60/23,397.80
  6. Step 6: Final answer
    x = 17,646.63

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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.