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Finding the Fourth Proportional to 36,699.58, 50,643.72 and 20,784.15

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Solution

The fourth proportional to 36,699.58, 50,643.72 and 20,784.15 is: 28,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,699.58 : 50,643.72 = 20,784.15 : x
  2. Step 2: Convert to fraction form
    36,699.58/50,643.72 = 20,784.15/x
  3. Step 3: Cross multiply
    36,699.58x = 50,643.72 × 20,784.15
  4. Step 4: Simplify right side
    36,699.58x = 1,052,586,419.82
  5. Step 5: Solve for x
    x = 1,052,586,419.82/36,699.58
  6. Step 6: Final answer
    x = 28,681.16

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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.