Home / 21,150.84-31,723.74-5,569.68

Finding the Fourth Proportional to 21,150.84, 31,723.74 and 5,569.68

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Solution

The fourth proportional to 21,150.84, 31,723.74 and 5,569.68 is: 8,353.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150.84 : 31,723.74 = 5,569.68 : x
  2. Step 2: Convert to fraction form
    21,150.84/31,723.74 = 5,569.68/x
  3. Step 3: Cross multiply
    21,150.84x = 31,723.74 × 5,569.68
  4. Step 4: Simplify right side
    21,150.84x = 176,691,080.20
  5. Step 5: Solve for x
    x = 176,691,080.20/21,150.84
  6. Step 6: Final answer
    x = 8,353.86

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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.