Home / 31,268.51-43,150.20-16,928.01

Finding the Fourth Proportional to 31,268.51, 43,150.20 and 16,928.01

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Solution

The fourth proportional to 31,268.51, 43,150.20 and 16,928.01 is: 23,360.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,268.51 : 43,150.20 = 16,928.01 : x
  2. Step 2: Convert to fraction form
    31,268.51/43,150.20 = 16,928.01/x
  3. Step 3: Cross multiply
    31,268.51x = 43,150.20 × 16,928.01
  4. Step 4: Simplify right side
    31,268.51x = 730,447,017.10
  5. Step 5: Solve for x
    x = 730,447,017.10/31,268.51
  6. Step 6: Final answer
    x = 23,360.47

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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.