Home / 20,574.80-28,393.77-11,623.62

Finding the Fourth Proportional to 20,574.80, 28,393.77 and 11,623.62

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Solution

The fourth proportional to 20,574.80, 28,393.77 and 11,623.62 is: 16,040.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.80 : 28,393.77 = 11,623.62 : x
  2. Step 2: Convert to fraction form
    20,574.80/28,393.77 = 11,623.62/x
  3. Step 3: Cross multiply
    20,574.80x = 28,393.77 × 11,623.62
  4. Step 4: Simplify right side
    20,574.80x = 330,038,392.85
  5. Step 5: Solve for x
    x = 330,038,392.85/20,574.80
  6. Step 6: Final answer
    x = 16,040.91

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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.