Home / 30,319.51-41,841.75-18,987.94

Finding the Fourth Proportional to 30,319.51, 41,841.75 and 18,987.94

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Solution

The fourth proportional to 30,319.51, 41,841.75 and 18,987.94 is: 26,203.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,319.51 : 41,841.75 = 18,987.94 : x
  2. Step 2: Convert to fraction form
    30,319.51/41,841.75 = 18,987.94/x
  3. Step 3: Cross multiply
    30,319.51x = 41,841.75 × 18,987.94
  4. Step 4: Simplify right side
    30,319.51x = 794,488,852.98
  5. Step 5: Solve for x
    x = 794,488,852.98/30,319.51
  6. Step 6: Final answer
    x = 26,203.88

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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.