Home / 20,744.49-28,630.01-11,670.31

Finding the Fourth Proportional to 20,744.49, 28,630.01 and 11,670.31

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Solution

The fourth proportional to 20,744.49, 28,630.01 and 11,670.31 is: 16,106.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.49 : 28,630.01 = 11,670.31 : x
  2. Step 2: Convert to fraction form
    20,744.49/28,630.01 = 11,670.31/x
  3. Step 3: Cross multiply
    20,744.49x = 28,630.01 × 11,670.31
  4. Step 4: Simplify right side
    20,744.49x = 334,121,091.32
  5. Step 5: Solve for x
    x = 334,121,091.32/20,744.49
  6. Step 6: Final answer
    x = 16,106.50

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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.