Home / 30,574.08-42,201.18-19,965.33

Finding the Fourth Proportional to 30,574.08, 42,201.18 and 19,965.33

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Solution

The fourth proportional to 30,574.08, 42,201.18 and 19,965.33 is: 27,558.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,574.08 : 42,201.18 = 19,965.33 : x
  2. Step 2: Convert to fraction form
    30,574.08/42,201.18 = 19,965.33/x
  3. Step 3: Cross multiply
    30,574.08x = 42,201.18 × 19,965.33
  4. Step 4: Simplify right side
    30,574.08x = 842,560,485.09
  5. Step 5: Solve for x
    x = 842,560,485.09/30,574.08
  6. Step 6: Final answer
    x = 27,558.00

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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.