Home / 21,973.14-30,323.70-12,541.50

Finding the Fourth Proportional to 21,973.14, 30,323.70 and 12,541.50

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Solution

The fourth proportional to 21,973.14, 30,323.70 and 12,541.50 is: 17,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,973.14 : 30,323.70 = 12,541.50 : x
  2. Step 2: Convert to fraction form
    21,973.14/30,323.70 = 12,541.50/x
  3. Step 3: Cross multiply
    21,973.14x = 30,323.70 × 12,541.50
  4. Step 4: Simplify right side
    21,973.14x = 380,304,683.55
  5. Step 5: Solve for x
    x = 380,304,683.55/21,973.14
  6. Step 6: Final answer
    x = 17,307.71

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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.