Home / 20,148.26-30,225.50-10,282.20

Finding the Fourth Proportional to 20,148.26, 30,225.50 and 10,282.20

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Solution

The fourth proportional to 20,148.26, 30,225.50 and 10,282.20 is: 15,424.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.26 : 30,225.50 = 10,282.20 : x
  2. Step 2: Convert to fraction form
    20,148.26/30,225.50 = 10,282.20/x
  3. Step 3: Cross multiply
    20,148.26x = 30,225.50 × 10,282.20
  4. Step 4: Simplify right side
    20,148.26x = 310,784,636.10
  5. Step 5: Solve for x
    x = 310,784,636.10/20,148.26
  6. Step 6: Final answer
    x = 15,424.89

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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.