Home / 30,776.73-42,471.90-16,629.54

Finding the Fourth Proportional to 30,776.73, 42,471.90 and 16,629.54

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Solution

The fourth proportional to 30,776.73, 42,471.90 and 16,629.54 is: 22,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,776.73 : 42,471.90 = 16,629.54 : x
  2. Step 2: Convert to fraction form
    30,776.73/42,471.90 = 16,629.54/x
  3. Step 3: Cross multiply
    30,776.73x = 42,471.90 × 16,629.54
  4. Step 4: Simplify right side
    30,776.73x = 706,288,159.93
  5. Step 5: Solve for x
    x = 706,288,159.93/30,776.73
  6. Step 6: Final answer
    x = 22,948.77

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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.