Home / 20,973.33-28,942.79-11,541.69

Finding the Fourth Proportional to 20,973.33, 28,942.79 and 11,541.69

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Solution

The fourth proportional to 20,973.33, 28,942.79 and 11,541.69 is: 15,927.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.33 : 28,942.79 = 11,541.69 : x
  2. Step 2: Convert to fraction form
    20,973.33/28,942.79 = 11,541.69/x
  3. Step 3: Cross multiply
    20,973.33x = 28,942.79 × 11,541.69
  4. Step 4: Simplify right side
    20,973.33x = 334,048,652.21
  5. Step 5: Solve for x
    x = 334,048,652.21/20,973.33
  6. Step 6: Final answer
    x = 15,927.31

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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.