Home / 39,451.09-54,443.45-21,545.94

Finding the Fourth Proportional to 39,451.09, 54,443.45 and 21,545.94

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Solution

The fourth proportional to 39,451.09, 54,443.45 and 21,545.94 is: 29,733.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,451.09 : 54,443.45 = 21,545.94 : x
  2. Step 2: Convert to fraction form
    39,451.09/54,443.45 = 21,545.94/x
  3. Step 3: Cross multiply
    39,451.09x = 54,443.45 × 21,545.94
  4. Step 4: Simplify right side
    39,451.09x = 1,173,035,199.36
  5. Step 5: Solve for x
    x = 1,173,035,199.36/39,451.09
  6. Step 6: Final answer
    x = 29,733.91

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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.