Home / 30,015.76-41,429.84-17,270.40

Finding the Fourth Proportional to 30,015.76, 41,429.84 and 17,270.40

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Solution

The fourth proportional to 30,015.76, 41,429.84 and 17,270.40 is: 23,837.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,015.76 : 41,429.84 = 17,270.40 : x
  2. Step 2: Convert to fraction form
    30,015.76/41,429.84 = 17,270.40/x
  3. Step 3: Cross multiply
    30,015.76x = 41,429.84 × 17,270.40
  4. Step 4: Simplify right side
    30,015.76x = 715,509,908.74
  5. Step 5: Solve for x
    x = 715,509,908.74/30,015.76
  6. Step 6: Final answer
    x = 23,837.81

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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.