Home / 39,257.32-54,175.80-21,352.72

Finding the Fourth Proportional to 39,257.32, 54,175.80 and 21,352.72

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Solution

The fourth proportional to 39,257.32, 54,175.80 and 21,352.72 is: 29,467.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,257.32 : 54,175.80 = 21,352.72 : x
  2. Step 2: Convert to fraction form
    39,257.32/54,175.80 = 21,352.72/x
  3. Step 3: Cross multiply
    39,257.32x = 54,175.80 × 21,352.72
  4. Step 4: Simplify right side
    39,257.32x = 1,156,800,688.18
  5. Step 5: Solve for x
    x = 1,156,800,688.18/39,257.32
  6. Step 6: Final answer
    x = 29,467.13

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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.