Home / 39,941.54-59,919.36-13,640.12

Finding the Fourth Proportional to 39,941.54, 59,919.36 and 13,640.12

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Solution

The fourth proportional to 39,941.54, 59,919.36 and 13,640.12 is: 20,462.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,941.54 : 59,919.36 = 13,640.12 : x
  2. Step 2: Convert to fraction form
    39,941.54/59,919.36 = 13,640.12/x
  3. Step 3: Cross multiply
    39,941.54x = 59,919.36 × 13,640.12
  4. Step 4: Simplify right side
    39,941.54x = 817,307,260.72
  5. Step 5: Solve for x
    x = 817,307,260.72/39,941.54
  6. Step 6: Final answer
    x = 20,462.59

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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.