Home / 37,628.12-51,921.36-21,709.64

Finding the Fourth Proportional to 37,628.12, 51,921.36 and 21,709.64

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Solution

The fourth proportional to 37,628.12, 51,921.36 and 21,709.64 is: 29,956.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,628.12 : 51,921.36 = 21,709.64 : x
  2. Step 2: Convert to fraction form
    37,628.12/51,921.36 = 21,709.64/x
  3. Step 3: Cross multiply
    37,628.12x = 51,921.36 × 21,709.64
  4. Step 4: Simplify right side
    37,628.12x = 1,127,194,033.91
  5. Step 5: Solve for x
    x = 1,127,194,033.91/37,628.12
  6. Step 6: Final answer
    x = 29,956.16

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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.