Home / 30,859.88-42,586.44-16,712.70

Finding the Fourth Proportional to 30,859.88, 42,586.44 and 16,712.70

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Solution

The fourth proportional to 30,859.88, 42,586.44 and 16,712.70 is: 23,063.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,859.88 : 42,586.44 = 16,712.70 : x
  2. Step 2: Convert to fraction form
    30,859.88/42,586.44 = 16,712.70/x
  3. Step 3: Cross multiply
    30,859.88x = 42,586.44 × 16,712.70
  4. Step 4: Simplify right side
    30,859.88x = 711,734,395.79
  5. Step 5: Solve for x
    x = 711,734,395.79/30,859.88
  6. Step 6: Final answer
    x = 23,063.42

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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.