Home / 39,640.20-59,449.77-13,339.50

Finding the Fourth Proportional to 39,640.20, 59,449.77 and 13,339.50

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Solution

The fourth proportional to 39,640.20, 59,449.77 and 13,339.50 is: 20,005.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,640.20 : 59,449.77 = 13,339.50 : x
  2. Step 2: Convert to fraction form
    39,640.20/59,449.77 = 13,339.50/x
  3. Step 3: Cross multiply
    39,640.20x = 59,449.77 × 13,339.50
  4. Step 4: Simplify right side
    39,640.20x = 793,030,206.92
  5. Step 5: Solve for x
    x = 793,030,206.92/39,640.20
  6. Step 6: Final answer
    x = 20,005.71

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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.