Home / 14,653.80-20,231.42-11,290.23

Finding the Fourth Proportional to 14,653.80, 20,231.42 and 11,290.23

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Solution

The fourth proportional to 14,653.80, 20,231.42 and 11,290.23 is: 15,587.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,653.80 : 20,231.42 = 11,290.23 : x
  2. Step 2: Convert to fraction form
    14,653.80/20,231.42 = 11,290.23/x
  3. Step 3: Cross multiply
    14,653.80x = 20,231.42 × 11,290.23
  4. Step 4: Simplify right side
    14,653.80x = 228,417,328.58
  5. Step 5: Solve for x
    x = 228,417,328.58/14,653.80
  6. Step 6: Final answer
    x = 15,587.58

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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.