Home / 40,065.12-55,288.68-22,160.88

Finding the Fourth Proportional to 40,065.12, 55,288.68 and 22,160.88

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Solution

The fourth proportional to 40,065.12, 55,288.68 and 22,160.88 is: 30,581.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,065.12 : 55,288.68 = 22,160.88 : x
  2. Step 2: Convert to fraction form
    40,065.12/55,288.68 = 22,160.88/x
  3. Step 3: Cross multiply
    40,065.12x = 55,288.68 × 22,160.88
  4. Step 4: Simplify right side
    40,065.12x = 1,225,245,802.84
  5. Step 5: Solve for x
    x = 1,225,245,802.84/40,065.12
  6. Step 6: Final answer
    x = 30,581.36

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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.