Home / 29,048.12-40,086.60-18,970.61

Finding the Fourth Proportional to 29,048.12, 40,086.60 and 18,970.61

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Solution

The fourth proportional to 29,048.12, 40,086.60 and 18,970.61 is: 26,179.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,048.12 : 40,086.60 = 18,970.61 : x
  2. Step 2: Convert to fraction form
    29,048.12/40,086.60 = 18,970.61/x
  3. Step 3: Cross multiply
    29,048.12x = 40,086.60 × 18,970.61
  4. Step 4: Simplify right side
    29,048.12x = 760,466,983.25
  5. Step 5: Solve for x
    x = 760,466,983.25/29,048.12
  6. Step 6: Final answer
    x = 26,179.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.