Home / 39,180.66-58,772.37-12,887.46

Finding the Fourth Proportional to 39,180.66, 58,772.37 and 12,887.46

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Solution

The fourth proportional to 39,180.66, 58,772.37 and 12,887.46 is: 19,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,180.66 : 58,772.37 = 12,887.46 : x
  2. Step 2: Convert to fraction form
    39,180.66/58,772.37 = 12,887.46/x
  3. Step 3: Cross multiply
    39,180.66x = 58,772.37 × 12,887.46
  4. Step 4: Simplify right side
    39,180.66x = 757,426,567.48
  5. Step 5: Solve for x
    x = 757,426,567.48/39,180.66
  6. Step 6: Final answer
    x = 19,331.64

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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.