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Finding the Fourth Proportional to 69,004.68, 103,507.37 and 20,973.74

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Solution

The fourth proportional to 69,004.68, 103,507.37 and 20,973.74 is: 31,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,004.68 : 103,507.37 = 20,973.74 : x
  2. Step 2: Convert to fraction form
    69,004.68/103,507.37 = 20,973.74/x
  3. Step 3: Cross multiply
    69,004.68x = 103,507.37 × 20,973.74
  4. Step 4: Simplify right side
    69,004.68x = 2,170,936,122.71
  5. Step 5: Solve for x
    x = 2,170,936,122.71/69,004.68
  6. Step 6: Final answer
    x = 31,460.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.