Home / 23,187.88-31,975.98-20,627.68

Finding the Fourth Proportional to 23,187.88, 31,975.98 and 20,627.68

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Solution

The fourth proportional to 23,187.88, 31,975.98 and 20,627.68 is: 28,445.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,187.88 : 31,975.98 = 20,627.68 : x
  2. Step 2: Convert to fraction form
    23,187.88/31,975.98 = 20,627.68/x
  3. Step 3: Cross multiply
    23,187.88x = 31,975.98 × 20,627.68
  4. Step 4: Simplify right side
    23,187.88x = 659,590,283.13
  5. Step 5: Solve for x
    x = 659,590,283.13/23,187.88
  6. Step 6: Final answer
    x = 28,445.48

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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.