Home / 27,621.72-38,111.34-16,290.30

Finding the Fourth Proportional to 27,621.72, 38,111.34 and 16,290.30

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Solution

The fourth proportional to 27,621.72, 38,111.34 and 16,290.30 is: 22,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.72 : 38,111.34 = 16,290.30 : x
  2. Step 2: Convert to fraction form
    27,621.72/38,111.34 = 16,290.30/x
  3. Step 3: Cross multiply
    27,621.72x = 38,111.34 × 16,290.30
  4. Step 4: Simplify right side
    27,621.72x = 620,845,162.00
  5. Step 5: Solve for x
    x = 620,845,162.00/27,621.72
  6. Step 6: Final answer
    x = 22,476.70

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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.