Home / 15,820.41-21,861.09-15,051.83

Finding the Fourth Proportional to 15,820.41, 21,861.09 and 15,051.83

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Solution

The fourth proportional to 15,820.41, 21,861.09 and 15,051.83 is: 20,799.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.41 : 21,861.09 = 15,051.83 : x
  2. Step 2: Convert to fraction form
    15,820.41/21,861.09 = 15,051.83/x
  3. Step 3: Cross multiply
    15,820.41x = 21,861.09 × 15,051.83
  4. Step 4: Simplify right side
    15,820.41x = 329,049,300.99
  5. Step 5: Solve for x
    x = 329,049,300.99/15,820.41
  6. Step 6: Final answer
    x = 20,799.03

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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.