Home / 30,409.19-45,618.36-10,684.28

Finding the Fourth Proportional to 30,409.19, 45,618.36 and 10,684.28

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Solution

The fourth proportional to 30,409.19, 45,618.36 and 10,684.28 is: 16,028.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,409.19 : 45,618.36 = 10,684.28 : x
  2. Step 2: Convert to fraction form
    30,409.19/45,618.36 = 10,684.28/x
  3. Step 3: Cross multiply
    30,409.19x = 45,618.36 × 10,684.28
  4. Step 4: Simplify right side
    30,409.19x = 487,399,331.38
  5. Step 5: Solve for x
    x = 487,399,331.38/30,409.19
  6. Step 6: Final answer
    x = 16,028.03

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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.