Home / 26,728.58-36,915.90-18,216.02

Finding the Fourth Proportional to 26,728.58, 36,915.90 and 18,216.02

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Solution

The fourth proportional to 26,728.58, 36,915.90 and 18,216.02 is: 25,158.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,728.58 : 36,915.90 = 18,216.02 : x
  2. Step 2: Convert to fraction form
    26,728.58/36,915.90 = 18,216.02/x
  3. Step 3: Cross multiply
    26,728.58x = 36,915.90 × 18,216.02
  4. Step 4: Simplify right side
    26,728.58x = 672,460,772.72
  5. Step 5: Solve for x
    x = 672,460,772.72/26,728.58
  6. Step 6: Final answer
    x = 25,158.87

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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.