Home / 39,587.92-54,631.60-21,684.56

Finding the Fourth Proportional to 39,587.92, 54,631.60 and 21,684.56

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Solution

The fourth proportional to 39,587.92, 54,631.60 and 21,684.56 is: 29,924.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,587.92 : 54,631.60 = 21,684.56 : x
  2. Step 2: Convert to fraction form
    39,587.92/54,631.60 = 21,684.56/x
  3. Step 3: Cross multiply
    39,587.92x = 54,631.60 × 21,684.56
  4. Step 4: Simplify right side
    39,587.92x = 1,184,662,208.10
  5. Step 5: Solve for x
    x = 1,184,662,208.10/39,587.92
  6. Step 6: Final answer
    x = 29,924.84

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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.