Home / 13,021.02-19,531.44-3,160.32

Finding the Fourth Proportional to 13,021.02, 19,531.44 and 3,160.32

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Solution

The fourth proportional to 13,021.02, 19,531.44 and 3,160.32 is: 4,740.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.02 : 19,531.44 = 3,160.32 : x
  2. Step 2: Convert to fraction form
    13,021.02/19,531.44 = 3,160.32/x
  3. Step 3: Cross multiply
    13,021.02x = 19,531.44 × 3,160.32
  4. Step 4: Simplify right side
    13,021.02x = 61,725,600.46
  5. Step 5: Solve for x
    x = 61,725,600.46/13,021.02
  6. Step 6: Final answer
    x = 4,740.46

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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.