Home / 40,065.88-55,287.19-22,160.50

Finding the Fourth Proportional to 40,065.88, 55,287.19 and 22,160.50

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Solution

The fourth proportional to 40,065.88, 55,287.19 and 22,160.50 is: 30,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,065.88 : 55,287.19 = 22,160.50 : x
  2. Step 2: Convert to fraction form
    40,065.88/55,287.19 = 22,160.50/x
  3. Step 3: Cross multiply
    40,065.88x = 55,287.19 × 22,160.50
  4. Step 4: Simplify right side
    40,065.88x = 1,225,191,525.26
  5. Step 5: Solve for x
    x = 1,225,191,525.26/40,065.88
  6. Step 6: Final answer
    x = 30,579.43

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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.