Home / 28,186.07-42,285.59-8,465.00

Finding the Fourth Proportional to 28,186.07, 42,285.59 and 8,465.00

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Solution

The fourth proportional to 28,186.07, 42,285.59 and 8,465.00 is: 12,699.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186.07 : 42,285.59 = 8,465.00 : x
  2. Step 2: Convert to fraction form
    28,186.07/42,285.59 = 8,465.00/x
  3. Step 3: Cross multiply
    28,186.07x = 42,285.59 × 8,465.00
  4. Step 4: Simplify right side
    28,186.07x = 357,947,265.60
  5. Step 5: Solve for x
    x = 357,947,265.60/28,186.07
  6. Step 6: Final answer
    x = 12,699.44

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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.