Home / 20,293.81-28,005.39-11,341.31

Finding the Fourth Proportional to 20,293.81, 28,005.39 and 11,341.31

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Solution

The fourth proportional to 20,293.81, 28,005.39 and 11,341.31 is: 15,650.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.81 : 28,005.39 = 11,341.31 : x
  2. Step 2: Convert to fraction form
    20,293.81/28,005.39 = 11,341.31/x
  3. Step 3: Cross multiply
    20,293.81x = 28,005.39 × 11,341.31
  4. Step 4: Simplify right side
    20,293.81x = 317,617,669.63
  5. Step 5: Solve for x
    x = 317,617,669.63/20,293.81
  6. Step 6: Final answer
    x = 15,650.96

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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.