Home / 39,378.18-54,339.74-22,611.18

Finding the Fourth Proportional to 39,378.18, 54,339.74 and 22,611.18

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Solution

The fourth proportional to 39,378.18, 54,339.74 and 22,611.18 is: 31,202.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,378.18 : 54,339.74 = 22,611.18 : x
  2. Step 2: Convert to fraction form
    39,378.18/54,339.74 = 22,611.18/x
  3. Step 3: Cross multiply
    39,378.18x = 54,339.74 × 22,611.18
  4. Step 4: Simplify right side
    39,378.18x = 1,228,685,642.29
  5. Step 5: Solve for x
    x = 1,228,685,642.29/39,378.18
  6. Step 6: Final answer
    x = 31,202.19

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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.