Home / 20,295.43-28,007.60-11,342.93

Finding the Fourth Proportional to 20,295.43, 28,007.60 and 11,342.93

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Solution

The fourth proportional to 20,295.43, 28,007.60 and 11,342.93 is: 15,653.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.43 : 28,007.60 = 11,342.93 : x
  2. Step 2: Convert to fraction form
    20,295.43/28,007.60 = 11,342.93/x
  3. Step 3: Cross multiply
    20,295.43x = 28,007.60 × 11,342.93
  4. Step 4: Simplify right side
    20,295.43x = 317,688,246.27
  5. Step 5: Solve for x
    x = 317,688,246.27/20,295.43
  6. Step 6: Final answer
    x = 15,653.19

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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.