Home / 21,433.06-29,579.18-12,937.24

Finding the Fourth Proportional to 21,433.06, 29,579.18 and 12,937.24

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Solution

The fourth proportional to 21,433.06, 29,579.18 and 12,937.24 is: 17,854.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.06 : 29,579.18 = 12,937.24 : x
  2. Step 2: Convert to fraction form
    21,433.06/29,579.18 = 12,937.24/x
  3. Step 3: Cross multiply
    21,433.06x = 29,579.18 × 12,937.24
  4. Step 4: Simplify right side
    21,433.06x = 382,673,006.14
  5. Step 5: Solve for x
    x = 382,673,006.14/21,433.06
  6. Step 6: Final answer
    x = 17,854.34

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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.