Home / 27,157.69-37,478.15-15,222.25

Finding the Fourth Proportional to 27,157.69, 37,478.15 and 15,222.25

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Solution

The fourth proportional to 27,157.69, 37,478.15 and 15,222.25 is: 21,007.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,157.69 : 37,478.15 = 15,222.25 : x
  2. Step 2: Convert to fraction form
    27,157.69/37,478.15 = 15,222.25/x
  3. Step 3: Cross multiply
    27,157.69x = 37,478.15 × 15,222.25
  4. Step 4: Simplify right side
    27,157.69x = 570,501,768.84
  5. Step 5: Solve for x
    x = 570,501,768.84/27,157.69
  6. Step 6: Final answer
    x = 21,007.01

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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.