Home / 30,604.08-42,242.60-19,995.44

Finding the Fourth Proportional to 30,604.08, 42,242.60 and 19,995.44

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Solution

The fourth proportional to 30,604.08, 42,242.60 and 19,995.44 is: 27,599.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,604.08 : 42,242.60 = 19,995.44 : x
  2. Step 2: Convert to fraction form
    30,604.08/42,242.60 = 19,995.44/x
  3. Step 3: Cross multiply
    30,604.08x = 42,242.60 × 19,995.44
  4. Step 4: Simplify right side
    30,604.08x = 844,659,373.74
  5. Step 5: Solve for x
    x = 844,659,373.74/30,604.08
  6. Step 6: Final answer
    x = 27,599.57

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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.