Home / 36,140.84-49,867.80-20,825

Finding the Fourth Proportional to 36,140.84, 49,867.80 and 20,825

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Solution

The fourth proportional to 36,140.84, 49,867.80 and 20,825 is: 28,734.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,140.84 : 49,867.80 = 20,825 : x
  2. Step 2: Convert to fraction form
    36,140.84/49,867.80 = 20,825/x
  3. Step 3: Cross multiply
    36,140.84x = 49,867.80 × 20,825
  4. Step 4: Simplify right side
    36,140.84x = 1,038,496,935.00
  5. Step 5: Solve for x
    x = 1,038,496,935.00/36,140.84
  6. Step 6: Final answer
    x = 28,734.72

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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.