Home / 37,129.76-51,240.24-20,364.32

Finding the Fourth Proportional to 37,129.76, 51,240.24 and 20,364.32

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Solution

The fourth proportional to 37,129.76, 51,240.24 and 20,364.32 is: 28,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,129.76 : 51,240.24 = 20,364.32 : x
  2. Step 2: Convert to fraction form
    37,129.76/51,240.24 = 20,364.32/x
  3. Step 3: Cross multiply
    37,129.76x = 51,240.24 × 20,364.32
  4. Step 4: Simplify right side
    37,129.76x = 1,043,472,644.24
  5. Step 5: Solve for x
    x = 1,043,472,644.24/37,129.76
  6. Step 6: Final answer
    x = 28,103.40

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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.