Home / 28,830.95-43,231.04-14,785.28

Finding the Fourth Proportional to 28,830.95, 43,231.04 and 14,785.28

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Solution

The fourth proportional to 28,830.95, 43,231.04 and 14,785.28 is: 22,170.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.95 : 43,231.04 = 14,785.28 : x
  2. Step 2: Convert to fraction form
    28,830.95/43,231.04 = 14,785.28/x
  3. Step 3: Cross multiply
    28,830.95x = 43,231.04 × 14,785.28
  4. Step 4: Simplify right side
    28,830.95x = 639,182,741.01
  5. Step 5: Solve for x
    x = 639,182,741.01/28,830.95
  6. Step 6: Final answer
    x = 22,170.02

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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.