Home / 20,897.10-28,821.90-14,523.63

Finding the Fourth Proportional to 20,897.10, 28,821.90 and 14,523.63

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Solution

The fourth proportional to 20,897.10, 28,821.90 and 14,523.63 is: 20,031.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.10 : 28,821.90 = 14,523.63 : x
  2. Step 2: Convert to fraction form
    20,897.10/28,821.90 = 14,523.63/x
  3. Step 3: Cross multiply
    20,897.10x = 28,821.90 × 14,523.63
  4. Step 4: Simplify right side
    20,897.10x = 418,598,611.50
  5. Step 5: Solve for x
    x = 418,598,611.50/20,897.10
  6. Step 6: Final answer
    x = 20,031.42

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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.