Home / 30,545.10-45,791.64-13,899.29

Finding the Fourth Proportional to 30,545.10, 45,791.64 and 13,899.29

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Solution

The fourth proportional to 30,545.10, 45,791.64 and 13,899.29 is: 20,837.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,545.10 : 45,791.64 = 13,899.29 : x
  2. Step 2: Convert to fraction form
    30,545.10/45,791.64 = 13,899.29/x
  3. Step 3: Cross multiply
    30,545.10x = 45,791.64 × 13,899.29
  4. Step 4: Simplify right side
    30,545.10x = 636,471,054.98
  5. Step 5: Solve for x
    x = 636,471,054.98/30,545.10
  6. Step 6: Final answer
    x = 20,837.09

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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.