Home / 30,402.83-41,943.84-20,315.29

Finding the Fourth Proportional to 30,402.83, 41,943.84 and 20,315.29

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Solution

The fourth proportional to 30,402.83, 41,943.84 and 20,315.29 is: 28,027.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,402.83 : 41,943.84 = 20,315.29 : x
  2. Step 2: Convert to fraction form
    30,402.83/41,943.84 = 20,315.29/x
  3. Step 3: Cross multiply
    30,402.83x = 41,943.84 × 20,315.29
  4. Step 4: Simplify right side
    30,402.83x = 852,101,092.27
  5. Step 5: Solve for x
    x = 852,101,092.27/30,402.83
  6. Step 6: Final answer
    x = 28,027.04

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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.