Home / 39,540.80-59,313.36-13,243.16

Finding the Fourth Proportional to 39,540.80, 59,313.36 and 13,243.16

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Solution

The fourth proportional to 39,540.80, 59,313.36 and 13,243.16 is: 19,865.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,540.80 : 59,313.36 = 13,243.16 : x
  2. Step 2: Convert to fraction form
    39,540.80/59,313.36 = 13,243.16/x
  3. Step 3: Cross multiply
    39,540.80x = 59,313.36 × 13,243.16
  4. Step 4: Simplify right side
    39,540.80x = 785,496,316.62
  5. Step 5: Solve for x
    x = 785,496,316.62/39,540.80
  6. Step 6: Final answer
    x = 19,865.46

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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.