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Finding the Fourth Proportional to 30,990.85, 46,486.27 and 8,801.34

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Solution

The fourth proportional to 30,990.85, 46,486.27 and 8,801.34 is: 13,202.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,990.85 : 46,486.27 = 8,801.34 : x
  2. Step 2: Convert to fraction form
    30,990.85/46,486.27 = 8,801.34/x
  3. Step 3: Cross multiply
    30,990.85x = 46,486.27 × 8,801.34
  4. Step 4: Simplify right side
    30,990.85x = 409,141,565.77
  5. Step 5: Solve for x
    x = 409,141,565.77/30,990.85
  6. Step 6: Final answer
    x = 13,202.01

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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.