Home / 30,191.19-41,657.61-18,255.03

Finding the Fourth Proportional to 30,191.19, 41,657.61 and 18,255.03

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Solution

The fourth proportional to 30,191.19, 41,657.61 and 18,255.03 is: 25,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,191.19 : 41,657.61 = 18,255.03 : x
  2. Step 2: Convert to fraction form
    30,191.19/41,657.61 = 18,255.03/x
  3. Step 3: Cross multiply
    30,191.19x = 41,657.61 × 18,255.03
  4. Step 4: Simplify right side
    30,191.19x = 760,460,920.28
  5. Step 5: Solve for x
    x = 760,460,920.28/30,191.19
  6. Step 6: Final answer
    x = 25,188.17

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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.