Home / 39,695.40-59,539.42-13,400.37

Finding the Fourth Proportional to 39,695.40, 59,539.42 and 13,400.37

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Solution

The fourth proportional to 39,695.40, 59,539.42 and 13,400.37 is: 20,099.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,695.40 : 59,539.42 = 13,400.37 : x
  2. Step 2: Convert to fraction form
    39,695.40/59,539.42 = 13,400.37/x
  3. Step 3: Cross multiply
    39,695.40x = 59,539.42 × 13,400.37
  4. Step 4: Simplify right side
    39,695.40x = 797,850,257.59
  5. Step 5: Solve for x
    x = 797,850,257.59/39,695.40
  6. Step 6: Final answer
    x = 20,099.31

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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.