Home / 39,646.07-54,712.32-21,740.01

Finding the Fourth Proportional to 39,646.07, 54,712.32 and 21,740.01

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Solution

The fourth proportional to 39,646.07, 54,712.32 and 21,740.01 is: 30,001.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,646.07 : 54,712.32 = 21,740.01 : x
  2. Step 2: Convert to fraction form
    39,646.07/54,712.32 = 21,740.01/x
  3. Step 3: Cross multiply
    39,646.07x = 54,712.32 × 21,740.01
  4. Step 4: Simplify right side
    39,646.07x = 1,189,446,383.92
  5. Step 5: Solve for x
    x = 1,189,446,383.92/39,646.07
  6. Step 6: Final answer
    x = 30,001.62

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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.