Home / 33,431.24-46,113-21,509.72

Finding the Fourth Proportional to 33,431.24, 46,113 and 21,509.72

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Solution

The fourth proportional to 33,431.24, 46,113 and 21,509.72 is: 29,669.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,431.24 : 46,113 = 21,509.72 : x
  2. Step 2: Convert to fraction form
    33,431.24/46,113 = 21,509.72/x
  3. Step 3: Cross multiply
    33,431.24x = 46,113 × 21,509.72
  4. Step 4: Simplify right side
    33,431.24x = 991,877,718.36
  5. Step 5: Solve for x
    x = 991,877,718.36/33,431.24
  6. Step 6: Final answer
    x = 29,669.19

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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.