Home / 30,210.03-41,689.26-16,780.68

Finding the Fourth Proportional to 30,210.03, 41,689.26 and 16,780.68

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Solution

The fourth proportional to 30,210.03, 41,689.26 and 16,780.68 is: 23,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.03 : 41,689.26 = 16,780.68 : x
  2. Step 2: Convert to fraction form
    30,210.03/41,689.26 = 16,780.68/x
  3. Step 3: Cross multiply
    30,210.03x = 41,689.26 × 16,780.68
  4. Step 4: Simplify right side
    30,210.03x = 699,574,131.50
  5. Step 5: Solve for x
    x = 699,574,131.50/30,210.03
  6. Step 6: Final answer
    x = 23,157.02

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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.