Home / 39,393.22-54,362.80-21,488.60

Finding the Fourth Proportional to 39,393.22, 54,362.80 and 21,488.60

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Solution

The fourth proportional to 39,393.22, 54,362.80 and 21,488.60 is: 29,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,393.22 : 54,362.80 = 21,488.60 : x
  2. Step 2: Convert to fraction form
    39,393.22/54,362.80 = 21,488.60/x
  3. Step 3: Cross multiply
    39,393.22x = 54,362.80 × 21,488.60
  4. Step 4: Simplify right side
    39,393.22x = 1,168,180,464.08
  5. Step 5: Solve for x
    x = 1,168,180,464.08/39,393.22
  6. Step 6: Final answer
    x = 29,654.35

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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.