Home / 27,518.85-37,936.08-20,338.20

Finding the Fourth Proportional to 27,518.85, 37,936.08 and 20,338.20

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Solution

The fourth proportional to 27,518.85, 37,936.08 and 20,338.20 is: 28,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,518.85 : 37,936.08 = 20,338.20 : x
  2. Step 2: Convert to fraction form
    27,518.85/37,936.08 = 20,338.20/x
  3. Step 3: Cross multiply
    27,518.85x = 37,936.08 × 20,338.20
  4. Step 4: Simplify right side
    27,518.85x = 771,551,582.26
  5. Step 5: Solve for x
    x = 771,551,582.26/27,518.85
  6. Step 6: Final answer
    x = 28,037.20

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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.