Home / 30,071.40-41,501.22-16,645.80

Finding the Fourth Proportional to 30,071.40, 41,501.22 and 16,645.80

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Solution

The fourth proportional to 30,071.40, 41,501.22 and 16,645.80 is: 22,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,071.40 : 41,501.22 = 16,645.80 : x
  2. Step 2: Convert to fraction form
    30,071.40/41,501.22 = 16,645.80/x
  3. Step 3: Cross multiply
    30,071.40x = 41,501.22 × 16,645.80
  4. Step 4: Simplify right side
    30,071.40x = 690,821,007.88
  5. Step 5: Solve for x
    x = 690,821,007.88/30,071.40
  6. Step 6: Final answer
    x = 22,972.69

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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.