Home / 27,785.01-38,343.57-16,455.15

Finding the Fourth Proportional to 27,785.01, 38,343.57 and 16,455.15

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Solution

The fourth proportional to 27,785.01, 38,343.57 and 16,455.15 is: 22,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,785.01 : 38,343.57 = 16,455.15 : x
  2. Step 2: Convert to fraction form
    27,785.01/38,343.57 = 16,455.15/x
  3. Step 3: Cross multiply
    27,785.01x = 38,343.57 × 16,455.15
  4. Step 4: Simplify right side
    27,785.01x = 630,949,195.89
  5. Step 5: Solve for x
    x = 630,949,195.89/27,785.01
  6. Step 6: Final answer
    x = 22,708.26

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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.