Home / 21,025.76-29,005.44-13,077.32

Finding the Fourth Proportional to 21,025.76, 29,005.44 and 13,077.32

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Solution

The fourth proportional to 21,025.76, 29,005.44 and 13,077.32 is: 18,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.76 : 29,005.44 = 13,077.32 : x
  2. Step 2: Convert to fraction form
    21,025.76/29,005.44 = 13,077.32/x
  3. Step 3: Cross multiply
    21,025.76x = 29,005.44 × 13,077.32
  4. Step 4: Simplify right side
    21,025.76x = 379,313,420.62
  5. Step 5: Solve for x
    x = 379,313,420.62/21,025.76
  6. Step 6: Final answer
    x = 18,040.41

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1.5x scale

Why These Related Problems?

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