Home / 21,141.63-29,173.10-11,707.83

Finding the Fourth Proportional to 21,141.63, 29,173.10 and 11,707.83

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Solution

The fourth proportional to 21,141.63, 29,173.10 and 11,707.83 is: 16,155.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141.63 : 29,173.10 = 11,707.83 : x
  2. Step 2: Convert to fraction form
    21,141.63/29,173.10 = 11,707.83/x
  3. Step 3: Cross multiply
    21,141.63x = 29,173.10 × 11,707.83
  4. Step 4: Simplify right side
    21,141.63x = 341,553,636.83
  5. Step 5: Solve for x
    x = 341,553,636.83/21,141.63
  6. Step 6: Final answer
    x = 16,155.50

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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.