Home / 18,258.24-25,238.88-16,288.32

Finding the Fourth Proportional to 18,258.24, 25,238.88 and 16,288.32

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Solution

The fourth proportional to 18,258.24, 25,238.88 and 16,288.32 is: 22,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.24 : 25,238.88 = 16,288.32 : x
  2. Step 2: Convert to fraction form
    18,258.24/25,238.88 = 16,288.32/x
  3. Step 3: Cross multiply
    18,258.24x = 25,238.88 × 16,288.32
  4. Step 4: Simplify right side
    18,258.24x = 411,098,953.88
  5. Step 5: Solve for x
    x = 411,098,953.88/18,258.24
  6. Step 6: Final answer
    x = 22,515.80

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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.