Home / 27,520.98-37,994.70-18,116.88

Finding the Fourth Proportional to 27,520.98, 37,994.70 and 18,116.88

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Solution

The fourth proportional to 27,520.98, 37,994.70 and 18,116.88 is: 25,011.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,520.98 : 37,994.70 = 18,116.88 : x
  2. Step 2: Convert to fraction form
    27,520.98/37,994.70 = 18,116.88/x
  3. Step 3: Cross multiply
    27,520.98x = 37,994.70 × 18,116.88
  4. Step 4: Simplify right side
    27,520.98x = 688,345,420.54
  5. Step 5: Solve for x
    x = 688,345,420.54/27,520.98
  6. Step 6: Final answer
    x = 25,011.66

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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.