Home / 27,728.22-38,264.90-15,152.96

Finding the Fourth Proportional to 27,728.22, 38,264.90 and 15,152.96

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Solution

The fourth proportional to 27,728.22, 38,264.90 and 15,152.96 is: 20,911.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,728.22 : 38,264.90 = 15,152.96 : x
  2. Step 2: Convert to fraction form
    27,728.22/38,264.90 = 15,152.96/x
  3. Step 3: Cross multiply
    27,728.22x = 38,264.90 × 15,152.96
  4. Step 4: Simplify right side
    27,728.22x = 579,826,499.10
  5. Step 5: Solve for x
    x = 579,826,499.10/27,728.22
  6. Step 6: Final answer
    x = 20,911.06

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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.