Home / 21,802.63-30,087.84-12,370.45

Finding the Fourth Proportional to 21,802.63, 30,087.84 and 12,370.45

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Solution

The fourth proportional to 21,802.63, 30,087.84 and 12,370.45 is: 17,071.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,802.63 : 30,087.84 = 12,370.45 : x
  2. Step 2: Convert to fraction form
    21,802.63/30,087.84 = 12,370.45/x
  3. Step 3: Cross multiply
    21,802.63x = 30,087.84 × 12,370.45
  4. Step 4: Simplify right side
    21,802.63x = 372,200,164.62
  5. Step 5: Solve for x
    x = 372,200,164.62/21,802.63
  6. Step 6: Final answer
    x = 17,071.34

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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.