Home / 27,128.74-37,435.85-15,028.40

Finding the Fourth Proportional to 27,128.74, 37,435.85 and 15,028.40

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Solution

The fourth proportional to 27,128.74, 37,435.85 and 15,028.40 is: 20,738.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.74 : 37,435.85 = 15,028.40 : x
  2. Step 2: Convert to fraction form
    27,128.74/37,435.85 = 15,028.40/x
  3. Step 3: Cross multiply
    27,128.74x = 37,435.85 × 15,028.40
  4. Step 4: Simplify right side
    27,128.74x = 562,600,928.14
  5. Step 5: Solve for x
    x = 562,600,928.14/27,128.74
  6. Step 6: Final answer
    x = 20,738.19

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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.