Home / 19,428.17-26,810.83-10,930.29

Finding the Fourth Proportional to 19,428.17, 26,810.83 and 10,930.29

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Solution

The fourth proportional to 19,428.17, 26,810.83 and 10,930.29 is: 15,083.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.17 : 26,810.83 = 10,930.29 : x
  2. Step 2: Convert to fraction form
    19,428.17/26,810.83 = 10,930.29/x
  3. Step 3: Cross multiply
    19,428.17x = 26,810.83 × 10,930.29
  4. Step 4: Simplify right side
    19,428.17x = 293,050,147.04
  5. Step 5: Solve for x
    x = 293,050,147.04/19,428.17
  6. Step 6: Final answer
    x = 15,083.78

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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.