Home / 20,228.40-30,348.58-10,374.60

Finding the Fourth Proportional to 20,228.40, 30,348.58 and 10,374.60

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Solution

The fourth proportional to 20,228.40, 30,348.58 and 10,374.60 is: 15,564.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228.40 : 30,348.58 = 10,374.60 : x
  2. Step 2: Convert to fraction form
    20,228.40/30,348.58 = 10,374.60/x
  3. Step 3: Cross multiply
    20,228.40x = 30,348.58 × 10,374.60
  4. Step 4: Simplify right side
    20,228.40x = 314,854,378.07
  5. Step 5: Solve for x
    x = 314,854,378.07/20,228.40
  6. Step 6: Final answer
    x = 15,564.97

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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.