Home / 21,203.58-29,266.26-12,256.29

Finding the Fourth Proportional to 21,203.58, 29,266.26 and 12,256.29

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Solution

The fourth proportional to 21,203.58, 29,266.26 and 12,256.29 is: 16,916.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.58 : 29,266.26 = 12,256.29 : x
  2. Step 2: Convert to fraction form
    21,203.58/29,266.26 = 12,256.29/x
  3. Step 3: Cross multiply
    21,203.58x = 29,266.26 × 12,256.29
  4. Step 4: Simplify right side
    21,203.58x = 358,695,769.78
  5. Step 5: Solve for x
    x = 358,695,769.78/21,203.58
  6. Step 6: Final answer
    x = 16,916.76

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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.