Home / 39,707.58-59,561.50-13,412.54

Finding the Fourth Proportional to 39,707.58, 59,561.50 and 13,412.54

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Solution

The fourth proportional to 39,707.58, 59,561.50 and 13,412.54 is: 20,118.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,707.58 : 59,561.50 = 13,412.54 : x
  2. Step 2: Convert to fraction form
    39,707.58/59,561.50 = 13,412.54/x
  3. Step 3: Cross multiply
    39,707.58x = 59,561.50 × 13,412.54
  4. Step 4: Simplify right side
    39,707.58x = 798,871,001.21
  5. Step 5: Solve for x
    x = 798,871,001.21/39,707.58
  6. Step 6: Final answer
    x = 20,118.85

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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.