Home / 29,555.61-40,786.72-18,945.24

Finding the Fourth Proportional to 29,555.61, 40,786.72 and 18,945.24

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Solution

The fourth proportional to 29,555.61, 40,786.72 and 18,945.24 is: 26,144.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,555.61 : 40,786.72 = 18,945.24 : x
  2. Step 2: Convert to fraction form
    29,555.61/40,786.72 = 18,945.24/x
  3. Step 3: Cross multiply
    29,555.61x = 40,786.72 × 18,945.24
  4. Step 4: Simplify right side
    29,555.61x = 772,714,199.21
  5. Step 5: Solve for x
    x = 772,714,199.21/29,555.61
  6. Step 6: Final answer
    x = 26,144.42

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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.