Home / 39,650.63-54,712.87-21,740.92

Finding the Fourth Proportional to 39,650.63, 54,712.87 and 21,740.92

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Solution

The fourth proportional to 39,650.63, 54,712.87 and 21,740.92 is: 29,999.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,650.63 : 54,712.87 = 21,740.92 : x
  2. Step 2: Convert to fraction form
    39,650.63/54,712.87 = 21,740.92/x
  3. Step 3: Cross multiply
    39,650.63x = 54,712.87 × 21,740.92
  4. Step 4: Simplify right side
    39,650.63x = 1,189,507,938.51
  5. Step 5: Solve for x
    x = 1,189,507,938.51/39,650.63
  6. Step 6: Final answer
    x = 29,999.73

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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.