Home / 34,896.15-48,156.12-18,981

Finding the Fourth Proportional to 34,896.15, 48,156.12 and 18,981

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Solution

The fourth proportional to 34,896.15, 48,156.12 and 18,981 is: 26,193.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,896.15 : 48,156.12 = 18,981 : x
  2. Step 2: Convert to fraction form
    34,896.15/48,156.12 = 18,981/x
  3. Step 3: Cross multiply
    34,896.15x = 48,156.12 × 18,981
  4. Step 4: Simplify right side
    34,896.15x = 914,051,313.72
  5. Step 5: Solve for x
    x = 914,051,313.72/34,896.15
  6. Step 6: Final answer
    x = 26,193.47

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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.