Home / 31,557.02-43,548.71-18,127.35

Finding the Fourth Proportional to 31,557.02, 43,548.71 and 18,127.35

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Solution

The fourth proportional to 31,557.02, 43,548.71 and 18,127.35 is: 25,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,557.02 : 43,548.71 = 18,127.35 : x
  2. Step 2: Convert to fraction form
    31,557.02/43,548.71 = 18,127.35/x
  3. Step 3: Cross multiply
    31,557.02x = 43,548.71 × 18,127.35
  4. Step 4: Simplify right side
    31,557.02x = 789,422,617.58
  5. Step 5: Solve for x
    x = 789,422,617.58/31,557.02
  6. Step 6: Final answer
    x = 25,015.76

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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.