Home / 30,804.30-42,503.40-18,054.90

Finding the Fourth Proportional to 30,804.30, 42,503.40 and 18,054.90

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Solution

The fourth proportional to 30,804.30, 42,503.40 and 18,054.90 is: 24,911.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,804.30 : 42,503.40 = 18,054.90 : x
  2. Step 2: Convert to fraction form
    30,804.30/42,503.40 = 18,054.90/x
  3. Step 3: Cross multiply
    30,804.30x = 42,503.40 × 18,054.90
  4. Step 4: Simplify right side
    30,804.30x = 767,394,636.66
  5. Step 5: Solve for x
    x = 767,394,636.66/30,804.30
  6. Step 6: Final answer
    x = 24,911.93

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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.