Home / 39,257.59-54,172.80-21,352.21

Finding the Fourth Proportional to 39,257.59, 54,172.80 and 21,352.21

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Solution

The fourth proportional to 39,257.59, 54,172.80 and 21,352.21 is: 29,464.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,257.59 : 54,172.80 = 21,352.21 : x
  2. Step 2: Convert to fraction form
    39,257.59/54,172.80 = 21,352.21/x
  3. Step 3: Cross multiply
    39,257.59x = 54,172.80 × 21,352.21
  4. Step 4: Simplify right side
    39,257.59x = 1,156,708,866.46
  5. Step 5: Solve for x
    x = 1,156,708,866.46/39,257.59
  6. Step 6: Final answer
    x = 29,464.59

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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.