Home / 20,357.63-28,095.15-11,975.75

Finding the Fourth Proportional to 20,357.63, 28,095.15 and 11,975.75

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Solution

The fourth proportional to 20,357.63, 28,095.15 and 11,975.75 is: 16,527.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357.63 : 28,095.15 = 11,975.75 : x
  2. Step 2: Convert to fraction form
    20,357.63/28,095.15 = 11,975.75/x
  3. Step 3: Cross multiply
    20,357.63x = 28,095.15 × 11,975.75
  4. Step 4: Simplify right side
    20,357.63x = 336,460,352.14
  5. Step 5: Solve for x
    x = 336,460,352.14/20,357.63
  6. Step 6: Final answer
    x = 16,527.49

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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.