Home / 28,890.95-43,336.43-7,831.00

Finding the Fourth Proportional to 28,890.95, 43,336.43 and 7,831.00

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Solution

The fourth proportional to 28,890.95, 43,336.43 and 7,831.00 is: 11,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.95 : 43,336.43 = 7,831.00 : x
  2. Step 2: Convert to fraction form
    28,890.95/43,336.43 = 7,831.00/x
  3. Step 3: Cross multiply
    28,890.95x = 43,336.43 × 7,831.00
  4. Step 4: Simplify right side
    28,890.95x = 339,367,486.37
  5. Step 5: Solve for x
    x = 339,367,486.37/28,890.95
  6. Step 6: Final answer
    x = 11,746.50

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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.