Home / 36,406.20-50,238.42-20,490

Finding the Fourth Proportional to 36,406.20, 50,238.42 and 20,490

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Solution

The fourth proportional to 36,406.20, 50,238.42 and 20,490 is: 28,275.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,406.20 : 50,238.42 = 20,490 : x
  2. Step 2: Convert to fraction form
    36,406.20/50,238.42 = 20,490/x
  3. Step 3: Cross multiply
    36,406.20x = 50,238.42 × 20,490
  4. Step 4: Simplify right side
    36,406.20x = 1,029,385,225.80
  5. Step 5: Solve for x
    x = 1,029,385,225.80/36,406.20
  6. Step 6: Final answer
    x = 28,275.00

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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.