Home / 30,521.46-45,796.77-19,440.66

Finding the Fourth Proportional to 30,521.46, 45,796.77 and 19,440.66

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Solution

The fourth proportional to 30,521.46, 45,796.77 and 19,440.66 is: 29,170.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,521.46 : 45,796.77 = 19,440.66 : x
  2. Step 2: Convert to fraction form
    30,521.46/45,796.77 = 19,440.66/x
  3. Step 3: Cross multiply
    30,521.46x = 45,796.77 × 19,440.66
  4. Step 4: Simplify right side
    30,521.46x = 890,319,434.67
  5. Step 5: Solve for x
    x = 890,319,434.67/30,521.46
  6. Step 6: Final answer
    x = 29,170.28

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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.