Home / 30,849.16-42,571.96-16,702

Finding the Fourth Proportional to 30,849.16, 42,571.96 and 16,702

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Solution

The fourth proportional to 30,849.16, 42,571.96 and 16,702 is: 23,048.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,849.16 : 42,571.96 = 16,702 : x
  2. Step 2: Convert to fraction form
    30,849.16/42,571.96 = 16,702/x
  3. Step 3: Cross multiply
    30,849.16x = 42,571.96 × 16,702
  4. Step 4: Simplify right side
    30,849.16x = 711,036,875.92
  5. Step 5: Solve for x
    x = 711,036,875.92/30,849.16
  6. Step 6: Final answer
    x = 23,048.82

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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.