Home / 36,878.09-55,218.78-19,311.08

Finding the Fourth Proportional to 36,878.09, 55,218.78 and 19,311.08

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Solution

The fourth proportional to 36,878.09, 55,218.78 and 19,311.08 is: 28,915.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,878.09 : 55,218.78 = 19,311.08 : x
  2. Step 2: Convert to fraction form
    36,878.09/55,218.78 = 19,311.08/x
  3. Step 3: Cross multiply
    36,878.09x = 55,218.78 × 19,311.08
  4. Step 4: Simplify right side
    36,878.09x = 1,066,334,001.99
  5. Step 5: Solve for x
    x = 1,066,334,001.99/36,878.09
  6. Step 6: Final answer
    x = 28,915.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.