Home / 21,211.36-29,274.48-12,826.24

Finding the Fourth Proportional to 21,211.36, 29,274.48 and 12,826.24

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Solution

The fourth proportional to 21,211.36, 29,274.48 and 12,826.24 is: 17,701.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,211.36 : 29,274.48 = 12,826.24 : x
  2. Step 2: Convert to fraction form
    21,211.36/29,274.48 = 12,826.24/x
  3. Step 3: Cross multiply
    21,211.36x = 29,274.48 × 12,826.24
  4. Step 4: Simplify right side
    21,211.36x = 375,481,506.36
  5. Step 5: Solve for x
    x = 375,481,506.36/21,211.36
  6. Step 6: Final answer
    x = 17,701.91

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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.