Home / 30,211.84-45,279.42-17,071.57

Finding the Fourth Proportional to 30,211.84, 45,279.42 and 17,071.57

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Solution

The fourth proportional to 30,211.84, 45,279.42 and 17,071.57 is: 25,585.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.84 : 45,279.42 = 17,071.57 : x
  2. Step 2: Convert to fraction form
    30,211.84/45,279.42 = 17,071.57/x
  3. Step 3: Cross multiply
    30,211.84x = 45,279.42 × 17,071.57
  4. Step 4: Simplify right side
    30,211.84x = 772,990,788.09
  5. Step 5: Solve for x
    x = 772,990,788.09/30,211.84
  6. Step 6: Final answer
    x = 25,585.69

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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.