Home / 21,068.57-31,584.35-8,599.10

Finding the Fourth Proportional to 21,068.57, 31,584.35 and 8,599.10

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Solution

The fourth proportional to 21,068.57, 31,584.35 and 8,599.10 is: 12,891.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.57 : 31,584.35 = 8,599.10 : x
  2. Step 2: Convert to fraction form
    21,068.57/31,584.35 = 8,599.10/x
  3. Step 3: Cross multiply
    21,068.57x = 31,584.35 × 8,599.10
  4. Step 4: Simplify right side
    21,068.57x = 271,596,783.17
  5. Step 5: Solve for x
    x = 271,596,783.17/21,068.57
  6. Step 6: Final answer
    x = 12,891.09

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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.