Home / 27,062.90-37,350.32-15,128.72

Finding the Fourth Proportional to 27,062.90, 37,350.32 and 15,128.72

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Solution

The fourth proportional to 27,062.90, 37,350.32 and 15,128.72 is: 20,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,062.90 : 37,350.32 = 15,128.72 : x
  2. Step 2: Convert to fraction form
    27,062.90/37,350.32 = 15,128.72/x
  3. Step 3: Cross multiply
    27,062.90x = 37,350.32 × 15,128.72
  4. Step 4: Simplify right side
    27,062.90x = 565,062,533.19
  5. Step 5: Solve for x
    x = 565,062,533.19/27,062.90
  6. Step 6: Final answer
    x = 20,879.60

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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.