Home / 25,971.81-38,963.49-12,113.25

Finding the Fourth Proportional to 25,971.81, 38,963.49 and 12,113.25

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Solution

The fourth proportional to 25,971.81, 38,963.49 and 12,113.25 is: 18,172.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,971.81 : 38,963.49 = 12,113.25 : x
  2. Step 2: Convert to fraction form
    25,971.81/38,963.49 = 12,113.25/x
  3. Step 3: Cross multiply
    25,971.81x = 38,963.49 × 12,113.25
  4. Step 4: Simplify right side
    25,971.81x = 471,974,495.24
  5. Step 5: Solve for x
    x = 471,974,495.24/25,971.81
  6. Step 6: Final answer
    x = 18,172.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.