Home / 28,722.15-43,068.63-13,126.41

Finding the Fourth Proportional to 28,722.15, 43,068.63 and 13,126.41

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Solution

The fourth proportional to 28,722.15, 43,068.63 and 13,126.41 is: 19,682.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.15 : 43,068.63 = 13,126.41 : x
  2. Step 2: Convert to fraction form
    28,722.15/43,068.63 = 13,126.41/x
  3. Step 3: Cross multiply
    28,722.15x = 43,068.63 × 13,126.41
  4. Step 4: Simplify right side
    28,722.15x = 565,336,495.52
  5. Step 5: Solve for x
    x = 565,336,495.52/28,722.15
  6. Step 6: Final answer
    x = 19,682.94

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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.