Home / 20,700.84-28,566.30-11,269.41

Finding the Fourth Proportional to 20,700.84, 28,566.30 and 11,269.41

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Solution

The fourth proportional to 20,700.84, 28,566.30 and 11,269.41 is: 15,551.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700.84 : 28,566.30 = 11,269.41 : x
  2. Step 2: Convert to fraction form
    20,700.84/28,566.30 = 11,269.41/x
  3. Step 3: Cross multiply
    20,700.84x = 28,566.30 × 11,269.41
  4. Step 4: Simplify right side
    20,700.84x = 321,925,346.88
  5. Step 5: Solve for x
    x = 321,925,346.88/20,700.84
  6. Step 6: Final answer
    x = 15,551.32

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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.