Home / 30,790.37-42,490.96-18,043.92

Finding the Fourth Proportional to 30,790.37, 42,490.96 and 18,043.92

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Solution

The fourth proportional to 30,790.37, 42,490.96 and 18,043.92 is: 24,900.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790.37 : 42,490.96 = 18,043.92 : x
  2. Step 2: Convert to fraction form
    30,790.37/42,490.96 = 18,043.92/x
  3. Step 3: Cross multiply
    30,790.37x = 42,490.96 × 18,043.92
  4. Step 4: Simplify right side
    30,790.37x = 766,703,437.85
  5. Step 5: Solve for x
    x = 766,703,437.85/30,790.37
  6. Step 6: Final answer
    x = 24,900.75

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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.