Home / 30,816.88-42,527.08-16,669.52

Finding the Fourth Proportional to 30,816.88, 42,527.08 and 16,669.52

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Solution

The fourth proportional to 30,816.88, 42,527.08 and 16,669.52 is: 23,003.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,816.88 : 42,527.08 = 16,669.52 : x
  2. Step 2: Convert to fraction form
    30,816.88/42,527.08 = 16,669.52/x
  3. Step 3: Cross multiply
    30,816.88x = 42,527.08 × 16,669.52
  4. Step 4: Simplify right side
    30,816.88x = 708,906,010.60
  5. Step 5: Solve for x
    x = 708,906,010.60/30,816.88
  6. Step 6: Final answer
    x = 23,003.82

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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.