Home / 15,342.40-21,172.77-10,037.22

Finding the Fourth Proportional to 15,342.40, 21,172.77 and 10,037.22

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Solution

The fourth proportional to 15,342.40, 21,172.77 and 10,037.22 is: 13,851.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.40 : 21,172.77 = 10,037.22 : x
  2. Step 2: Convert to fraction form
    15,342.40/21,172.77 = 10,037.22/x
  3. Step 3: Cross multiply
    15,342.40x = 21,172.77 × 10,037.22
  4. Step 4: Simplify right side
    15,342.40x = 212,515,750.50
  5. Step 5: Solve for x
    x = 212,515,750.50/15,342.40
  6. Step 6: Final answer
    x = 13,851.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.