Home / 37,188-51,319.44-20,422.08

Finding the Fourth Proportional to 37,188, 51,319.44 and 20,422.08

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Solution

The fourth proportional to 37,188, 51,319.44 and 20,422.08 is: 28,182.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,188 : 51,319.44 = 20,422.08 : x
  2. Step 2: Convert to fraction form
    37,188/51,319.44 = 20,422.08/x
  3. Step 3: Cross multiply
    37,188x = 51,319.44 × 20,422.08
  4. Step 4: Simplify right side
    37,188x = 1,048,049,709.24
  5. Step 5: Solve for x
    x = 1,048,049,709.24/37,188
  6. Step 6: Final answer
    x = 28,182.47

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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.