Home / 40,115.59-55,360.35-21,967.08

Finding the Fourth Proportional to 40,115.59, 55,360.35 and 21,967.08

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Solution

The fourth proportional to 40,115.59, 55,360.35 and 21,967.08 is: 30,315.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,115.59 : 55,360.35 = 21,967.08 : x
  2. Step 2: Convert to fraction form
    40,115.59/55,360.35 = 21,967.08/x
  3. Step 3: Cross multiply
    40,115.59x = 55,360.35 × 21,967.08
  4. Step 4: Simplify right side
    40,115.59x = 1,216,105,029.68
  5. Step 5: Solve for x
    x = 1,216,105,029.68/40,115.59
  6. Step 6: Final answer
    x = 30,315.02

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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.