Home / 39,589.08-54,633.05-21,684.84

Finding the Fourth Proportional to 39,589.08, 54,633.05 and 21,684.84

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Solution

The fourth proportional to 39,589.08, 54,633.05 and 21,684.84 is: 29,925.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,589.08 : 54,633.05 = 21,684.84 : x
  2. Step 2: Convert to fraction form
    39,589.08/54,633.05 = 21,684.84/x
  3. Step 3: Cross multiply
    39,589.08x = 54,633.05 × 21,684.84
  4. Step 4: Simplify right side
    39,589.08x = 1,184,708,947.96
  5. Step 5: Solve for x
    x = 1,184,708,947.96/39,589.08
  6. Step 6: Final answer
    x = 29,925.14

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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.