Home / 27,995.52-42,007.86-12,409.50

Finding the Fourth Proportional to 27,995.52, 42,007.86 and 12,409.50

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Solution

The fourth proportional to 27,995.52, 42,007.86 and 12,409.50 is: 18,620.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,995.52 : 42,007.86 = 12,409.50 : x
  2. Step 2: Convert to fraction form
    27,995.52/42,007.86 = 12,409.50/x
  3. Step 3: Cross multiply
    27,995.52x = 42,007.86 × 12,409.50
  4. Step 4: Simplify right side
    27,995.52x = 521,296,538.67
  5. Step 5: Solve for x
    x = 521,296,538.67/27,995.52
  6. Step 6: Final answer
    x = 18,620.71

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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.