Home / 20,927.30-31,395.88-6,888.43

Finding the Fourth Proportional to 20,927.30, 31,395.88 and 6,888.43

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Solution

The fourth proportional to 20,927.30, 31,395.88 and 6,888.43 is: 10,334.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.30 : 31,395.88 = 6,888.43 : x
  2. Step 2: Convert to fraction form
    20,927.30/31,395.88 = 6,888.43/x
  3. Step 3: Cross multiply
    20,927.30x = 31,395.88 × 6,888.43
  4. Step 4: Simplify right side
    20,927.30x = 216,268,225.96
  5. Step 5: Solve for x
    x = 216,268,225.96/20,927.30
  6. Step 6: Final answer
    x = 10,334.27

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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.