Home / 28,965.29-39,973.07-16,219.01

Finding the Fourth Proportional to 28,965.29, 39,973.07 and 16,219.01

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Solution

The fourth proportional to 28,965.29, 39,973.07 and 16,219.01 is: 22,382.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,965.29 : 39,973.07 = 16,219.01 : x
  2. Step 2: Convert to fraction form
    28,965.29/39,973.07 = 16,219.01/x
  3. Step 3: Cross multiply
    28,965.29x = 39,973.07 × 16,219.01
  4. Step 4: Simplify right side
    28,965.29x = 648,323,622.06
  5. Step 5: Solve for x
    x = 648,323,622.06/28,965.29
  6. Step 6: Final answer
    x = 22,382.78

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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.