Home / 20,973.96-28,943.46-11,542.32

Finding the Fourth Proportional to 20,973.96, 28,943.46 and 11,542.32

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Solution

The fourth proportional to 20,973.96, 28,943.46 and 11,542.32 is: 15,928.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.96 : 28,943.46 = 11,542.32 : x
  2. Step 2: Convert to fraction form
    20,973.96/28,943.46 = 11,542.32/x
  3. Step 3: Cross multiply
    20,973.96x = 28,943.46 × 11,542.32
  4. Step 4: Simplify right side
    20,973.96x = 334,074,677.23
  5. Step 5: Solve for x
    x = 334,074,677.23/20,973.96
  6. Step 6: Final answer
    x = 15,928.07

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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.