Home / 20,428.92-30,618.64-14,496.48

Finding the Fourth Proportional to 20,428.92, 30,618.64 and 14,496.48

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Solution

The fourth proportional to 20,428.92, 30,618.64 and 14,496.48 is: 21,727.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,428.92 : 30,618.64 = 14,496.48 : x
  2. Step 2: Convert to fraction form
    20,428.92/30,618.64 = 14,496.48/x
  3. Step 3: Cross multiply
    20,428.92x = 30,618.64 × 14,496.48
  4. Step 4: Simplify right side
    20,428.92x = 443,862,502.39
  5. Step 5: Solve for x
    x = 443,862,502.39/20,428.92
  6. Step 6: Final answer
    x = 21,727.16

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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.