Home / 37,422.45-51,643.47-20,427.19

Finding the Fourth Proportional to 37,422.45, 51,643.47 and 20,427.19

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Solution

The fourth proportional to 37,422.45, 51,643.47 and 20,427.19 is: 28,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,422.45 : 51,643.47 = 20,427.19 : x
  2. Step 2: Convert to fraction form
    37,422.45/51,643.47 = 20,427.19/x
  3. Step 3: Cross multiply
    37,422.45x = 51,643.47 × 20,427.19
  4. Step 4: Simplify right side
    37,422.45x = 1,054,930,767.52
  5. Step 5: Solve for x
    x = 1,054,930,767.52/37,422.45
  6. Step 6: Final answer
    x = 28,189.78

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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.