Home / 30,859.80-42,586.54-16,712.68

Finding the Fourth Proportional to 30,859.80, 42,586.54 and 16,712.68

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Solution

The fourth proportional to 30,859.80, 42,586.54 and 16,712.68 is: 23,063.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,859.80 : 42,586.54 = 16,712.68 : x
  2. Step 2: Convert to fraction form
    30,859.80/42,586.54 = 16,712.68/x
  3. Step 3: Cross multiply
    30,859.80x = 42,586.54 × 16,712.68
  4. Step 4: Simplify right side
    30,859.80x = 711,735,215.33
  5. Step 5: Solve for x
    x = 711,735,215.33/30,859.80
  6. Step 6: Final answer
    x = 23,063.51

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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.