Home / 19,780.73-27,298.05-10,828.88

Finding the Fourth Proportional to 19,780.73, 27,298.05 and 10,828.88

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Solution

The fourth proportional to 19,780.73, 27,298.05 and 10,828.88 is: 14,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.73 : 27,298.05 = 10,828.88 : x
  2. Step 2: Convert to fraction form
    19,780.73/27,298.05 = 10,828.88/x
  3. Step 3: Cross multiply
    19,780.73x = 27,298.05 × 10,828.88
  4. Step 4: Simplify right side
    19,780.73x = 295,607,307.68
  5. Step 5: Solve for x
    x = 295,607,307.68/19,780.73
  6. Step 6: Final answer
    x = 14,944.21

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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.