Home / 30,405.24-41,995.80-22,885.20

Finding the Fourth Proportional to 30,405.24, 41,995.80 and 22,885.20

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Solution

The fourth proportional to 30,405.24, 41,995.80 and 22,885.20 is: 31,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,405.24 : 41,995.80 = 22,885.20 : x
  2. Step 2: Convert to fraction form
    30,405.24/41,995.80 = 22,885.20/x
  3. Step 3: Cross multiply
    30,405.24x = 41,995.80 × 22,885.20
  4. Step 4: Simplify right side
    30,405.24x = 961,082,282.16
  5. Step 5: Solve for x
    x = 961,082,282.16/30,405.24
  6. Step 6: Final answer
    x = 31,609.10

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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.