Home / 30,069.75-45,091.56-14,279.34

Finding the Fourth Proportional to 30,069.75, 45,091.56 and 14,279.34

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Solution

The fourth proportional to 30,069.75, 45,091.56 and 14,279.34 is: 21,412.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,069.75 : 45,091.56 = 14,279.34 : x
  2. Step 2: Convert to fraction form
    30,069.75/45,091.56 = 14,279.34/x
  3. Step 3: Cross multiply
    30,069.75x = 45,091.56 × 14,279.34
  4. Step 4: Simplify right side
    30,069.75x = 643,877,716.37
  5. Step 5: Solve for x
    x = 643,877,716.37/30,069.75
  6. Step 6: Final answer
    x = 21,412.81

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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.