Home / 28,955.72-43,422.64-12,323.58

Finding the Fourth Proportional to 28,955.72, 43,422.64 and 12,323.58

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Solution

The fourth proportional to 28,955.72, 43,422.64 and 12,323.58 is: 18,480.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,955.72 : 43,422.64 = 12,323.58 : x
  2. Step 2: Convert to fraction form
    28,955.72/43,422.64 = 12,323.58/x
  3. Step 3: Cross multiply
    28,955.72x = 43,422.64 × 12,323.58
  4. Step 4: Simplify right side
    28,955.72x = 535,122,316.23
  5. Step 5: Solve for x
    x = 535,122,316.23/28,955.72
  6. Step 6: Final answer
    x = 18,480.71

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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.