Home / 30,150.36-41,606.78-16,721.51

Finding the Fourth Proportional to 30,150.36, 41,606.78 and 16,721.51

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Solution

The fourth proportional to 30,150.36, 41,606.78 and 16,721.51 is: 23,075.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,150.36 : 41,606.78 = 16,721.51 : x
  2. Step 2: Convert to fraction form
    30,150.36/41,606.78 = 16,721.51/x
  3. Step 3: Cross multiply
    30,150.36x = 41,606.78 × 16,721.51
  4. Step 4: Simplify right side
    30,150.36x = 695,727,896.20
  5. Step 5: Solve for x
    x = 695,727,896.20/30,150.36
  6. Step 6: Final answer
    x = 23,075.28

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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.