Home / 27,171.47-40,696.99-20,885.20

Finding the Fourth Proportional to 27,171.47, 40,696.99 and 20,885.20

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Solution

The fourth proportional to 27,171.47, 40,696.99 and 20,885.20 is: 31,281.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,171.47 : 40,696.99 = 20,885.20 : x
  2. Step 2: Convert to fraction form
    27,171.47/40,696.99 = 20,885.20/x
  3. Step 3: Cross multiply
    27,171.47x = 40,696.99 × 20,885.20
  4. Step 4: Simplify right side
    27,171.47x = 849,964,775.55
  5. Step 5: Solve for x
    x = 849,964,775.55/27,171.47
  6. Step 6: Final answer
    x = 31,281.52

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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.