Home / 30,208.85-41,673.75-21,261.32

Finding the Fourth Proportional to 30,208.85, 41,673.75 and 21,261.32

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Solution

The fourth proportional to 30,208.85, 41,673.75 and 21,261.32 is: 29,330.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,208.85 : 41,673.75 = 21,261.32 : x
  2. Step 2: Convert to fraction form
    30,208.85/41,673.75 = 21,261.32/x
  3. Step 3: Cross multiply
    30,208.85x = 41,673.75 × 21,261.32
  4. Step 4: Simplify right side
    30,208.85x = 886,038,934.35
  5. Step 5: Solve for x
    x = 886,038,934.35/30,208.85
  6. Step 6: Final answer
    x = 29,330.44

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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.