Home / 35,731.44-53,602.11-20,745.63

Finding the Fourth Proportional to 35,731.44, 53,602.11 and 20,745.63

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Solution

The fourth proportional to 35,731.44, 53,602.11 and 20,745.63 is: 31,121.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,731.44 : 53,602.11 = 20,745.63 : x
  2. Step 2: Convert to fraction form
    35,731.44/53,602.11 = 20,745.63/x
  3. Step 3: Cross multiply
    35,731.44x = 53,602.11 × 20,745.63
  4. Step 4: Simplify right side
    35,731.44x = 1,112,009,541.28
  5. Step 5: Solve for x
    x = 1,112,009,541.28/35,731.44
  6. Step 6: Final answer
    x = 31,121.32

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1.5x scale

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.