Home / 30,072.80-45,085.17-14,269.88

Finding the Fourth Proportional to 30,072.80, 45,085.17 and 14,269.88

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Solution

The fourth proportional to 30,072.80, 45,085.17 and 14,269.88 is: 21,393.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,072.80 : 45,085.17 = 14,269.88 : x
  2. Step 2: Convert to fraction form
    30,072.80/45,085.17 = 14,269.88/x
  3. Step 3: Cross multiply
    30,072.80x = 45,085.17 × 14,269.88
  4. Step 4: Simplify right side
    30,072.80x = 643,359,965.68
  5. Step 5: Solve for x
    x = 643,359,965.68/30,072.80
  6. Step 6: Final answer
    x = 21,393.42

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1.5x scale

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.