Home / 28,992.28-40,022.94-20,501.56

Finding the Fourth Proportional to 28,992.28, 40,022.94 and 20,501.56

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Solution

The fourth proportional to 28,992.28, 40,022.94 and 20,501.56 is: 28,301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.28 : 40,022.94 = 20,501.56 : x
  2. Step 2: Convert to fraction form
    28,992.28/40,022.94 = 20,501.56/x
  3. Step 3: Cross multiply
    28,992.28x = 40,022.94 × 20,501.56
  4. Step 4: Simplify right side
    28,992.28x = 820,532,705.79
  5. Step 5: Solve for x
    x = 820,532,705.79/28,992.28
  6. Step 6: Final answer
    x = 28,301.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.