Home / 39,732.27-54,830.70-21,826.82

Finding the Fourth Proportional to 39,732.27, 54,830.70 and 21,826.82

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Solution

The fourth proportional to 39,732.27, 54,830.70 and 21,826.82 is: 30,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,732.27 : 54,830.70 = 21,826.82 : x
  2. Step 2: Convert to fraction form
    39,732.27/54,830.70 = 21,826.82/x
  3. Step 3: Cross multiply
    39,732.27x = 54,830.70 × 21,826.82
  4. Step 4: Simplify right side
    39,732.27x = 1,196,779,545.22
  5. Step 5: Solve for x
    x = 1,196,779,545.22/39,732.27
  6. Step 6: Final answer
    x = 30,121.10

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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.