Home / 20,013.81-30,025.64-14,102.24

Finding the Fourth Proportional to 20,013.81, 30,025.64 and 14,102.24

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Solution

The fourth proportional to 20,013.81, 30,025.64 and 14,102.24 is: 21,156.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.81 : 30,025.64 = 14,102.24 : x
  2. Step 2: Convert to fraction form
    20,013.81/30,025.64 = 14,102.24/x
  3. Step 3: Cross multiply
    20,013.81x = 30,025.64 × 14,102.24
  4. Step 4: Simplify right side
    20,013.81x = 423,428,856.50
  5. Step 5: Solve for x
    x = 423,428,856.50/20,013.81
  6. Step 6: Final answer
    x = 21,156.83

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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.