Home / 25,650.64-38,490.36-11,800.72

Finding the Fourth Proportional to 25,650.64, 38,490.36 and 11,800.72

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Solution

The fourth proportional to 25,650.64, 38,490.36 and 11,800.72 is: 17,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,650.64 : 38,490.36 = 11,800.72 : x
  2. Step 2: Convert to fraction form
    25,650.64/38,490.36 = 11,800.72/x
  3. Step 3: Cross multiply
    25,650.64x = 38,490.36 × 11,800.72
  4. Step 4: Simplify right side
    25,650.64x = 454,213,961.06
  5. Step 5: Solve for x
    x = 454,213,961.06/25,650.64
  6. Step 6: Final answer
    x = 17,707.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.