Home / 26,428.50-39,633.24-12,386.10

Finding the Fourth Proportional to 26,428.50, 39,633.24 and 12,386.10

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Solution

The fourth proportional to 26,428.50, 39,633.24 and 12,386.10 is: 18,574.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,428.50 : 39,633.24 = 12,386.10 : x
  2. Step 2: Convert to fraction form
    26,428.50/39,633.24 = 12,386.10/x
  3. Step 3: Cross multiply
    26,428.50x = 39,633.24 × 12,386.10
  4. Step 4: Simplify right side
    26,428.50x = 490,901,273.96
  5. Step 5: Solve for x
    x = 490,901,273.96/26,428.50
  6. Step 6: Final answer
    x = 18,574.69

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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.