Home / 28,470.45-42,731.80-14,440.24

Finding the Fourth Proportional to 28,470.45, 42,731.80 and 14,440.24

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Solution

The fourth proportional to 28,470.45, 42,731.80 and 14,440.24 is: 21,673.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.45 : 42,731.80 = 14,440.24 : x
  2. Step 2: Convert to fraction form
    28,470.45/42,731.80 = 14,440.24/x
  3. Step 3: Cross multiply
    28,470.45x = 42,731.80 × 14,440.24
  4. Step 4: Simplify right side
    28,470.45x = 617,057,447.63
  5. Step 5: Solve for x
    x = 617,057,447.63/28,470.45
  6. Step 6: Final answer
    x = 21,673.61

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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.