Home / 20,489.96-30,700.38-14,935.52

Finding the Fourth Proportional to 20,489.96, 30,700.38 and 14,935.52

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Solution

The fourth proportional to 20,489.96, 30,700.38 and 14,935.52 is: 22,378.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,489.96 : 30,700.38 = 14,935.52 : x
  2. Step 2: Convert to fraction form
    20,489.96/30,700.38 = 14,935.52/x
  3. Step 3: Cross multiply
    20,489.96x = 30,700.38 × 14,935.52
  4. Step 4: Simplify right side
    20,489.96x = 458,526,139.50
  5. Step 5: Solve for x
    x = 458,526,139.50/20,489.96
  6. Step 6: Final answer
    x = 22,378.09

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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.