Home / 21,302.72-29,397.96-11,742.96

Finding the Fourth Proportional to 21,302.72, 29,397.96 and 11,742.96

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Solution

The fourth proportional to 21,302.72, 29,397.96 and 11,742.96 is: 16,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.72 : 29,397.96 = 11,742.96 : x
  2. Step 2: Convert to fraction form
    21,302.72/29,397.96 = 11,742.96/x
  3. Step 3: Cross multiply
    21,302.72x = 29,397.96 × 11,742.96
  4. Step 4: Simplify right side
    21,302.72x = 345,219,068.36
  5. Step 5: Solve for x
    x = 345,219,068.36/21,302.72
  6. Step 6: Final answer
    x = 16,205.40

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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.