Home / 37,157.68-51,277.44-20,390.32

Finding the Fourth Proportional to 37,157.68, 51,277.44 and 20,390.32

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Solution

The fourth proportional to 37,157.68, 51,277.44 and 20,390.32 is: 28,138.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,157.68 : 51,277.44 = 20,390.32 : x
  2. Step 2: Convert to fraction form
    37,157.68/51,277.44 = 20,390.32/x
  3. Step 3: Cross multiply
    37,157.68x = 51,277.44 × 20,390.32
  4. Step 4: Simplify right side
    37,157.68x = 1,045,563,410.38
  5. Step 5: Solve for x
    x = 1,045,563,410.38/37,157.68
  6. Step 6: Final answer
    x = 28,138.55

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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.