Home / 39,402.45-54,374.97-21,497.07

Finding the Fourth Proportional to 39,402.45, 54,374.97 and 21,497.07

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Solution

The fourth proportional to 39,402.45, 54,374.97 and 21,497.07 is: 29,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,402.45 : 54,374.97 = 21,497.07 : x
  2. Step 2: Convert to fraction form
    39,402.45/54,374.97 = 21,497.07/x
  3. Step 3: Cross multiply
    39,402.45x = 54,374.97 × 21,497.07
  4. Step 4: Simplify right side
    39,402.45x = 1,168,902,607.47
  5. Step 5: Solve for x
    x = 1,168,902,607.47/39,402.45
  6. Step 6: Final answer
    x = 29,665.73

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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.