Home / 30,087.12-45,131.72-14,284

Finding the Fourth Proportional to 30,087.12, 45,131.72 and 14,284

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Solution

The fourth proportional to 30,087.12, 45,131.72 and 14,284 is: 21,426.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,087.12 : 45,131.72 = 14,284 : x
  2. Step 2: Convert to fraction form
    30,087.12/45,131.72 = 14,284/x
  3. Step 3: Cross multiply
    30,087.12x = 45,131.72 × 14,284
  4. Step 4: Simplify right side
    30,087.12x = 644,661,488.48
  5. Step 5: Solve for x
    x = 644,661,488.48/30,087.12
  6. Step 6: Final answer
    x = 21,426.49

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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.