Home / 30,210.03-41,690.16-16,782.12

Finding the Fourth Proportional to 30,210.03, 41,690.16 and 16,782.12

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Solution

The fourth proportional to 30,210.03, 41,690.16 and 16,782.12 is: 23,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.03 : 41,690.16 = 16,782.12 : x
  2. Step 2: Convert to fraction form
    30,210.03/41,690.16 = 16,782.12/x
  3. Step 3: Cross multiply
    30,210.03x = 41,690.16 × 16,782.12
  4. Step 4: Simplify right side
    30,210.03x = 699,649,267.94
  5. Step 5: Solve for x
    x = 699,649,267.94/30,210.03
  6. Step 6: Final answer
    x = 23,159.50

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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.