Home / 21,209.96-29,267.52-12,256.76

Finding the Fourth Proportional to 21,209.96, 29,267.52 and 12,256.76

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Solution

The fourth proportional to 21,209.96, 29,267.52 and 12,256.76 is: 16,913.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,209.96 : 29,267.52 = 12,256.76 : x
  2. Step 2: Convert to fraction form
    21,209.96/29,267.52 = 12,256.76/x
  3. Step 3: Cross multiply
    21,209.96x = 29,267.52 × 12,256.76
  4. Step 4: Simplify right side
    21,209.96x = 358,724,968.44
  5. Step 5: Solve for x
    x = 358,724,968.44/21,209.96
  6. Step 6: Final answer
    x = 16,913.04

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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.