Home / 28,699.80-43,037.55-8,973.06

Finding the Fourth Proportional to 28,699.80, 43,037.55 and 8,973.06

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Solution

The fourth proportional to 28,699.80, 43,037.55 and 8,973.06 is: 13,455.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.80 : 43,037.55 = 8,973.06 : x
  2. Step 2: Convert to fraction form
    28,699.80/43,037.55 = 8,973.06/x
  3. Step 3: Cross multiply
    28,699.80x = 43,037.55 × 8,973.06
  4. Step 4: Simplify right side
    28,699.80x = 386,178,518.40
  5. Step 5: Solve for x
    x = 386,178,518.40/28,699.80
  6. Step 6: Final answer
    x = 13,455.79

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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.