Home / 37,070.81-51,161.37-21,157.64

Finding the Fourth Proportional to 37,070.81, 51,161.37 and 21,157.64

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Solution

The fourth proportional to 37,070.81, 51,161.37 and 21,157.64 is: 29,199.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,070.81 : 51,161.37 = 21,157.64 : x
  2. Step 2: Convert to fraction form
    37,070.81/51,161.37 = 21,157.64/x
  3. Step 3: Cross multiply
    37,070.81x = 51,161.37 × 21,157.64
  4. Step 4: Simplify right side
    37,070.81x = 1,082,453,592.56
  5. Step 5: Solve for x
    x = 1,082,453,592.56/37,070.81
  6. Step 6: Final answer
    x = 29,199.62

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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.