Home / 28,081.55-42,108.23-9,355.00

Finding the Fourth Proportional to 28,081.55, 42,108.23 and 9,355.00

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Solution

The fourth proportional to 28,081.55, 42,108.23 and 9,355.00 is: 14,027.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.55 : 42,108.23 = 9,355.00 : x
  2. Step 2: Convert to fraction form
    28,081.55/42,108.23 = 9,355.00/x
  3. Step 3: Cross multiply
    28,081.55x = 42,108.23 × 9,355.00
  4. Step 4: Simplify right side
    28,081.55x = 393,922,409.77
  5. Step 5: Solve for x
    x = 393,922,409.77/28,081.55
  6. Step 6: Final answer
    x = 14,027.80

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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.