Home / 30,670.40-46,016.40-13,145.60

Finding the Fourth Proportional to 30,670.40, 46,016.40 and 13,145.60

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Solution

The fourth proportional to 30,670.40, 46,016.40 and 13,145.60 is: 19,723.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670.40 : 46,016.40 = 13,145.60 : x
  2. Step 2: Convert to fraction form
    30,670.40/46,016.40 = 13,145.60/x
  3. Step 3: Cross multiply
    30,670.40x = 46,016.40 × 13,145.60
  4. Step 4: Simplify right side
    30,670.40x = 604,913,187.84
  5. Step 5: Solve for x
    x = 604,913,187.84/30,670.40
  6. Step 6: Final answer
    x = 19,723.03

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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.