Home / 19,772.21-27,285.65-10,819.71

Finding the Fourth Proportional to 19,772.21, 27,285.65 and 10,819.71

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Solution

The fourth proportional to 19,772.21, 27,285.65 and 10,819.71 is: 14,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.21 : 27,285.65 = 10,819.71 : x
  2. Step 2: Convert to fraction form
    19,772.21/27,285.65 = 10,819.71/x
  3. Step 3: Cross multiply
    19,772.21x = 27,285.65 × 10,819.71
  4. Step 4: Simplify right side
    19,772.21x = 295,222,766.06
  5. Step 5: Solve for x
    x = 295,222,766.06/19,772.21
  6. Step 6: Final answer
    x = 14,931.20

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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.