Home / 39,458.10-59,190.21-13,162.80

Finding the Fourth Proportional to 39,458.10, 59,190.21 and 13,162.80

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Solution

The fourth proportional to 39,458.10, 59,190.21 and 13,162.80 is: 19,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,458.10 : 59,190.21 = 13,162.80 : x
  2. Step 2: Convert to fraction form
    39,458.10/59,190.21 = 13,162.80/x
  3. Step 3: Cross multiply
    39,458.10x = 59,190.21 × 13,162.80
  4. Step 4: Simplify right side
    39,458.10x = 779,109,118.15
  5. Step 5: Solve for x
    x = 779,109,118.15/39,458.10
  6. Step 6: Final answer
    x = 19,745.22

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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.