Home / 36,143.93-49,878.18-20,228.51

Finding the Fourth Proportional to 36,143.93, 49,878.18 and 20,228.51

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Solution

The fourth proportional to 36,143.93, 49,878.18 and 20,228.51 is: 27,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,143.93 : 49,878.18 = 20,228.51 : x
  2. Step 2: Convert to fraction form
    36,143.93/49,878.18 = 20,228.51/x
  3. Step 3: Cross multiply
    36,143.93x = 49,878.18 × 20,228.51
  4. Step 4: Simplify right side
    36,143.93x = 1,008,961,262.91
  5. Step 5: Solve for x
    x = 1,008,961,262.91/36,143.93
  6. Step 6: Final answer
    x = 27,915.10

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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.