Home / 28,274.74-39,008.39-16,787.12

Finding the Fourth Proportional to 28,274.74, 39,008.39 and 16,787.12

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Solution

The fourth proportional to 28,274.74, 39,008.39 and 16,787.12 is: 23,159.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,274.74 : 39,008.39 = 16,787.12 : x
  2. Step 2: Convert to fraction form
    28,274.74/39,008.39 = 16,787.12/x
  3. Step 3: Cross multiply
    28,274.74x = 39,008.39 × 16,787.12
  4. Step 4: Simplify right side
    28,274.74x = 654,838,244.96
  5. Step 5: Solve for x
    x = 654,838,244.96/28,274.74
  6. Step 6: Final answer
    x = 23,159.83

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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.