Home / 30,604.64-42,237.45-18,675.97

Finding the Fourth Proportional to 30,604.64, 42,237.45 and 18,675.97

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Solution

The fourth proportional to 30,604.64, 42,237.45 and 18,675.97 is: 25,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,604.64 : 42,237.45 = 18,675.97 : x
  2. Step 2: Convert to fraction form
    30,604.64/42,237.45 = 18,675.97/x
  3. Step 3: Cross multiply
    30,604.64x = 42,237.45 × 18,675.97
  4. Step 4: Simplify right side
    30,604.64x = 788,825,243.48
  5. Step 5: Solve for x
    x = 788,825,243.48/30,604.64
  6. Step 6: Final answer
    x = 25,774.70

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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.