Home / 21,256.68-29,333.70-12,302.94

Finding the Fourth Proportional to 21,256.68, 29,333.70 and 12,302.94

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Solution

The fourth proportional to 21,256.68, 29,333.70 and 12,302.94 is: 16,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256.68 : 29,333.70 = 12,302.94 : x
  2. Step 2: Convert to fraction form
    21,256.68/29,333.70 = 12,302.94/x
  3. Step 3: Cross multiply
    21,256.68x = 29,333.70 × 12,302.94
  4. Step 4: Simplify right side
    21,256.68x = 360,890,751.08
  5. Step 5: Solve for x
    x = 360,890,751.08/21,256.68
  6. Step 6: Final answer
    x = 16,977.76

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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.