Home / 30,841.89-42,561.77-16,694.70

Finding the Fourth Proportional to 30,841.89, 42,561.77 and 16,694.70

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Solution

The fourth proportional to 30,841.89, 42,561.77 and 16,694.70 is: 23,038.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,841.89 : 42,561.77 = 16,694.70 : x
  2. Step 2: Convert to fraction form
    30,841.89/42,561.77 = 16,694.70/x
  3. Step 3: Cross multiply
    30,841.89x = 42,561.77 × 16,694.70
  4. Step 4: Simplify right side
    30,841.89x = 710,555,981.62
  5. Step 5: Solve for x
    x = 710,555,981.62/30,841.89
  6. Step 6: Final answer
    x = 23,038.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.