Home / 23,137.40-34,681.80-13,255.40

Finding the Fourth Proportional to 23,137.40, 34,681.80 and 13,255.40

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Solution

The fourth proportional to 23,137.40, 34,681.80 and 13,255.40 is: 19,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,137.40 : 34,681.80 = 13,255.40 : x
  2. Step 2: Convert to fraction form
    23,137.40/34,681.80 = 13,255.40/x
  3. Step 3: Cross multiply
    23,137.40x = 34,681.80 × 13,255.40
  4. Step 4: Simplify right side
    23,137.40x = 459,721,131.72
  5. Step 5: Solve for x
    x = 459,721,131.72/23,137.40
  6. Step 6: Final answer
    x = 19,869.18

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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.