Home / 21,441.36-29,590.14-12,943.36

Finding the Fourth Proportional to 21,441.36, 29,590.14 and 12,943.36

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Solution

The fourth proportional to 21,441.36, 29,590.14 and 12,943.36 is: 17,862.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,441.36 : 29,590.14 = 12,943.36 : x
  2. Step 2: Convert to fraction form
    21,441.36/29,590.14 = 12,943.36/x
  3. Step 3: Cross multiply
    21,441.36x = 29,590.14 × 12,943.36
  4. Step 4: Simplify right side
    21,441.36x = 382,995,834.47
  5. Step 5: Solve for x
    x = 382,995,834.47/21,441.36
  6. Step 6: Final answer
    x = 17,862.48

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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.