Home / 36,216.50-49,981.65-21,315.38

Finding the Fourth Proportional to 36,216.50, 49,981.65 and 21,315.38

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Solution

The fourth proportional to 36,216.50, 49,981.65 and 21,315.38 is: 29,416.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,216.50 : 49,981.65 = 21,315.38 : x
  2. Step 2: Convert to fraction form
    36,216.50/49,981.65 = 21,315.38/x
  3. Step 3: Cross multiply
    36,216.50x = 49,981.65 × 21,315.38
  4. Step 4: Simplify right side
    36,216.50x = 1,065,377,862.78
  5. Step 5: Solve for x
    x = 1,065,377,862.78/36,216.50
  6. Step 6: Final answer
    x = 29,416.92

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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.