Home / 30,784.24-42,507.42-19,471.96

Finding the Fourth Proportional to 30,784.24, 42,507.42 and 19,471.96

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Solution

The fourth proportional to 30,784.24, 42,507.42 and 19,471.96 is: 26,887.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,784.24 : 42,507.42 = 19,471.96 : x
  2. Step 2: Convert to fraction form
    30,784.24/42,507.42 = 19,471.96/x
  3. Step 3: Cross multiply
    30,784.24x = 42,507.42 × 19,471.96
  4. Step 4: Simplify right side
    30,784.24x = 827,702,781.94
  5. Step 5: Solve for x
    x = 827,702,781.94/30,784.24
  6. Step 6: Final answer
    x = 26,887.22

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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.