Home / 19,935.45-29,852.15-11,129.13

Finding the Fourth Proportional to 19,935.45, 29,852.15 and 11,129.13

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Solution

The fourth proportional to 19,935.45, 29,852.15 and 11,129.13 is: 16,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.45 : 29,852.15 = 11,129.13 : x
  2. Step 2: Convert to fraction form
    19,935.45/29,852.15 = 11,129.13/x
  3. Step 3: Cross multiply
    19,935.45x = 29,852.15 × 11,129.13
  4. Step 4: Simplify right side
    19,935.45x = 332,228,402.48
  5. Step 5: Solve for x
    x = 332,228,402.48/19,935.45
  6. Step 6: Final answer
    x = 16,665.21

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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.