Home / 39,592.31-54,637.38-21,687.35

Finding the Fourth Proportional to 39,592.31, 54,637.38 and 21,687.35

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Solution

The fourth proportional to 39,592.31, 54,637.38 and 21,687.35 is: 29,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,592.31 : 54,637.38 = 21,687.35 : x
  2. Step 2: Convert to fraction form
    39,592.31/54,637.38 = 21,687.35/x
  3. Step 3: Cross multiply
    39,592.31x = 54,637.38 × 21,687.35
  4. Step 4: Simplify right side
    39,592.31x = 1,184,939,709.96
  5. Step 5: Solve for x
    x = 1,184,939,709.96/39,592.31
  6. Step 6: Final answer
    x = 29,928.54

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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.