Home / 30,865.58-46,219.30-21,364.74

Finding the Fourth Proportional to 30,865.58, 46,219.30 and 21,364.74

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Solution

The fourth proportional to 30,865.58, 46,219.30 and 21,364.74 is: 31,992.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,865.58 : 46,219.30 = 21,364.74 : x
  2. Step 2: Convert to fraction form
    30,865.58/46,219.30 = 21,364.74/x
  3. Step 3: Cross multiply
    30,865.58x = 46,219.30 × 21,364.74
  4. Step 4: Simplify right side
    30,865.58x = 987,463,327.48
  5. Step 5: Solve for x
    x = 987,463,327.48/30,865.58
  6. Step 6: Final answer
    x = 31,992.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.