Home / 30,677.80-46,010.40-8,485.60

Finding the Fourth Proportional to 30,677.80, 46,010.40 and 8,485.60

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Solution

The fourth proportional to 30,677.80, 46,010.40 and 8,485.60 is: 12,726.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,677.80 : 46,010.40 = 8,485.60 : x
  2. Step 2: Convert to fraction form
    30,677.80/46,010.40 = 8,485.60/x
  3. Step 3: Cross multiply
    30,677.80x = 46,010.40 × 8,485.60
  4. Step 4: Simplify right side
    30,677.80x = 390,425,850.24
  5. Step 5: Solve for x
    x = 390,425,850.24/30,677.80
  6. Step 6: Final answer
    x = 12,726.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.