Home / 21,802.62-30,086.73-12,370.98

Finding the Fourth Proportional to 21,802.62, 30,086.73 and 12,370.98

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Solution

The fourth proportional to 21,802.62, 30,086.73 and 12,370.98 is: 17,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,802.62 : 30,086.73 = 12,370.98 : x
  2. Step 2: Convert to fraction form
    21,802.62/30,086.73 = 12,370.98/x
  3. Step 3: Cross multiply
    21,802.62x = 30,086.73 × 12,370.98
  4. Step 4: Simplify right side
    21,802.62x = 372,202,335.10
  5. Step 5: Solve for x
    x = 372,202,335.10/21,802.62
  6. Step 6: Final answer
    x = 17,071.45

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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.