Home / 20,374.28-30,521.90-15,027.72

Finding the Fourth Proportional to 20,374.28, 30,521.90 and 15,027.72

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Solution

The fourth proportional to 20,374.28, 30,521.90 and 15,027.72 is: 22,512.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.28 : 30,521.90 = 15,027.72 : x
  2. Step 2: Convert to fraction form
    20,374.28/30,521.90 = 15,027.72/x
  3. Step 3: Cross multiply
    20,374.28x = 30,521.90 × 15,027.72
  4. Step 4: Simplify right side
    20,374.28x = 458,674,567.07
  5. Step 5: Solve for x
    x = 458,674,567.07/20,374.28
  6. Step 6: Final answer
    x = 22,512.43

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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.