Home / 39,587.42-54,630.74-21,438.34

Finding the Fourth Proportional to 39,587.42, 54,630.74 and 21,438.34

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Solution

The fourth proportional to 39,587.42, 54,630.74 and 21,438.34 is: 29,584.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,587.42 : 54,630.74 = 21,438.34 : x
  2. Step 2: Convert to fraction form
    39,587.42/54,630.74 = 21,438.34/x
  3. Step 3: Cross multiply
    39,587.42x = 54,630.74 × 21,438.34
  4. Step 4: Simplify right side
    39,587.42x = 1,171,192,378.57
  5. Step 5: Solve for x
    x = 1,171,192,378.57/39,587.42
  6. Step 6: Final answer
    x = 29,584.96

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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.