Home / 14,520.06-20,020.77-13,470.30

Finding the Fourth Proportional to 14,520.06, 20,020.77 and 13,470.30

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Solution

The fourth proportional to 14,520.06, 20,020.77 and 13,470.30 is: 18,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.06 : 20,020.77 = 13,470.30 : x
  2. Step 2: Convert to fraction form
    14,520.06/20,020.77 = 13,470.30/x
  3. Step 3: Cross multiply
    14,520.06x = 20,020.77 × 13,470.30
  4. Step 4: Simplify right side
    14,520.06x = 269,685,778.13
  5. Step 5: Solve for x
    x = 269,685,778.13/14,520.06
  6. Step 6: Final answer
    x = 18,573.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.