Home / 30,628.29-45,634.41-28,616.25

Finding the Fourth Proportional to 30,628.29, 45,634.41 and 28,616.25

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Solution

The fourth proportional to 30,628.29, 45,634.41 and 28,616.25 is: 42,636.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,628.29 : 45,634.41 = 28,616.25 : x
  2. Step 2: Convert to fraction form
    30,628.29/45,634.41 = 28,616.25/x
  3. Step 3: Cross multiply
    30,628.29x = 45,634.41 × 28,616.25
  4. Step 4: Simplify right side
    30,628.29x = 1,305,885,685.16
  5. Step 5: Solve for x
    x = 1,305,885,685.16/30,628.29
  6. Step 6: Final answer
    x = 42,636.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.