Home / 27,728.16-38,264.87-15,152.91

Finding the Fourth Proportional to 27,728.16, 38,264.87 and 15,152.91

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Solution

The fourth proportional to 27,728.16, 38,264.87 and 15,152.91 is: 20,911.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,728.16 : 38,264.87 = 15,152.91 : x
  2. Step 2: Convert to fraction form
    27,728.16/38,264.87 = 15,152.91/x
  3. Step 3: Cross multiply
    27,728.16x = 38,264.87 × 15,152.91
  4. Step 4: Simplify right side
    27,728.16x = 579,824,025.66
  5. Step 5: Solve for x
    x = 579,824,025.66/27,728.16
  6. Step 6: Final answer
    x = 20,911.02

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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.