Home / 21,139.19-29,105.62-17,946.17

Finding the Fourth Proportional to 21,139.19, 29,105.62 and 17,946.17

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Solution

The fourth proportional to 21,139.19, 29,105.62 and 17,946.17 is: 24,709.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,139.19 : 29,105.62 = 17,946.17 : x
  2. Step 2: Convert to fraction form
    21,139.19/29,105.62 = 17,946.17/x
  3. Step 3: Cross multiply
    21,139.19x = 29,105.62 × 17,946.17
  4. Step 4: Simplify right side
    21,139.19x = 522,334,214.08
  5. Step 5: Solve for x
    x = 522,334,214.08/21,139.19
  6. Step 6: Final answer
    x = 24,709.29

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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.