Home / 39,745.47-59,581.14-13,431.81

Finding the Fourth Proportional to 39,745.47, 59,581.14 and 13,431.81

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Solution

The fourth proportional to 39,745.47, 59,581.14 and 13,431.81 is: 20,135.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,745.47 : 59,581.14 = 13,431.81 : x
  2. Step 2: Convert to fraction form
    39,745.47/59,581.14 = 13,431.81/x
  3. Step 3: Cross multiply
    39,745.47x = 59,581.14 × 13,431.81
  4. Step 4: Simplify right side
    39,745.47x = 800,282,187.00
  5. Step 5: Solve for x
    x = 800,282,187.00/39,745.47
  6. Step 6: Final answer
    x = 20,135.18

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1.5x scale

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.