Home / 23,221.08-32,031.18-21,665.88

Finding the Fourth Proportional to 23,221.08, 32,031.18 and 21,665.88

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Solution

The fourth proportional to 23,221.08, 32,031.18 and 21,665.88 is: 29,885.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,221.08 : 32,031.18 = 21,665.88 : x
  2. Step 2: Convert to fraction form
    23,221.08/32,031.18 = 21,665.88/x
  3. Step 3: Cross multiply
    23,221.08x = 32,031.18 × 21,665.88
  4. Step 4: Simplify right side
    23,221.08x = 693,983,702.14
  5. Step 5: Solve for x
    x = 693,983,702.14/23,221.08
  6. Step 6: Final answer
    x = 29,885.94

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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.