Home / 30,783.71-46,185.29-13,261.79

Finding the Fourth Proportional to 30,783.71, 46,185.29 and 13,261.79

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Solution

The fourth proportional to 30,783.71, 46,185.29 and 13,261.79 is: 19,896.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,783.71 : 46,185.29 = 13,261.79 : x
  2. Step 2: Convert to fraction form
    30,783.71/46,185.29 = 13,261.79/x
  3. Step 3: Cross multiply
    30,783.71x = 46,185.29 × 13,261.79
  4. Step 4: Simplify right side
    30,783.71x = 612,499,319.83
  5. Step 5: Solve for x
    x = 612,499,319.83/30,783.71
  6. Step 6: Final answer
    x = 19,896.87

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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.