Home / 39,845.16-59,776.38-12,145.32

Finding the Fourth Proportional to 39,845.16, 59,776.38 and 12,145.32

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Solution

The fourth proportional to 39,845.16, 59,776.38 and 12,145.32 is: 18,220.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,845.16 : 59,776.38 = 12,145.32 : x
  2. Step 2: Convert to fraction form
    39,845.16/59,776.38 = 12,145.32/x
  3. Step 3: Cross multiply
    39,845.16x = 59,776.38 × 12,145.32
  4. Step 4: Simplify right side
    39,845.16x = 726,003,263.54
  5. Step 5: Solve for x
    x = 726,003,263.54/39,845.16
  6. Step 6: Final answer
    x = 18,220.61

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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.