Home / 19,889.07-29,834.55-11,117.31

Finding the Fourth Proportional to 19,889.07, 29,834.55 and 11,117.31

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Solution

The fourth proportional to 19,889.07, 29,834.55 and 11,117.31 is: 16,676.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,889.07 : 29,834.55 = 11,117.31 : x
  2. Step 2: Convert to fraction form
    19,889.07/29,834.55 = 11,117.31/x
  3. Step 3: Cross multiply
    19,889.07x = 29,834.55 × 11,117.31
  4. Step 4: Simplify right side
    19,889.07x = 331,679,941.06
  5. Step 5: Solve for x
    x = 331,679,941.06/19,889.07
  6. Step 6: Final answer
    x = 16,676.49

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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.