Home / 39,897.92-59,864.46-21,173.40

Finding the Fourth Proportional to 39,897.92, 59,864.46 and 21,173.40

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Solution

The fourth proportional to 39,897.92, 59,864.46 and 21,173.40 is: 31,769.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,897.92 : 59,864.46 = 21,173.40 : x
  2. Step 2: Convert to fraction form
    39,897.92/59,864.46 = 21,173.40/x
  3. Step 3: Cross multiply
    39,897.92x = 59,864.46 × 21,173.40
  4. Step 4: Simplify right side
    39,897.92x = 1,267,534,157.36
  5. Step 5: Solve for x
    x = 1,267,534,157.36/39,897.92
  6. Step 6: Final answer
    x = 31,769.43

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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.