Home / 20,619.42-30,929.12-7,302.18

Finding the Fourth Proportional to 20,619.42, 30,929.12 and 7,302.18

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Solution

The fourth proportional to 20,619.42, 30,929.12 and 7,302.18 is: 10,953.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,619.42 : 30,929.12 = 7,302.18 : x
  2. Step 2: Convert to fraction form
    20,619.42/30,929.12 = 7,302.18/x
  3. Step 3: Cross multiply
    20,619.42x = 30,929.12 × 7,302.18
  4. Step 4: Simplify right side
    20,619.42x = 225,849,964.97
  5. Step 5: Solve for x
    x = 225,849,964.97/20,619.42
  6. Step 6: Final answer
    x = 10,953.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.