Home / 28,553.63-42,830.45-8,831.75

Finding the Fourth Proportional to 28,553.63, 42,830.45 and 8,831.75

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Solution

The fourth proportional to 28,553.63, 42,830.45 and 8,831.75 is: 13,247.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,553.63 : 42,830.45 = 8,831.75 : x
  2. Step 2: Convert to fraction form
    28,553.63/42,830.45 = 8,831.75/x
  3. Step 3: Cross multiply
    28,553.63x = 42,830.45 × 8,831.75
  4. Step 4: Simplify right side
    28,553.63x = 378,267,568.48
  5. Step 5: Solve for x
    x = 378,267,568.48/28,553.63
  6. Step 6: Final answer
    x = 13,247.62

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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.