Home / 39,545.90-54,573.34-21,640.91

Finding the Fourth Proportional to 39,545.90, 54,573.34 and 21,640.91

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Solution

The fourth proportional to 39,545.90, 54,573.34 and 21,640.91 is: 29,864.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,545.90 : 54,573.34 = 21,640.91 : x
  2. Step 2: Convert to fraction form
    39,545.90/54,573.34 = 21,640.91/x
  3. Step 3: Cross multiply
    39,545.90x = 54,573.34 × 21,640.91
  4. Step 4: Simplify right side
    39,545.90x = 1,181,016,929.88
  5. Step 5: Solve for x
    x = 1,181,016,929.88/39,545.90
  6. Step 6: Final answer
    x = 29,864.46

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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.