Home / 20,383.58-28,116.39-14,726.63

Finding the Fourth Proportional to 20,383.58, 28,116.39 and 14,726.63

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Solution

The fourth proportional to 20,383.58, 28,116.39 and 14,726.63 is: 20,313.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.58 : 28,116.39 = 14,726.63 : x
  2. Step 2: Convert to fraction form
    20,383.58/28,116.39 = 14,726.63/x
  3. Step 3: Cross multiply
    20,383.58x = 28,116.39 × 14,726.63
  4. Step 4: Simplify right side
    20,383.58x = 414,059,672.47
  5. Step 5: Solve for x
    x = 414,059,672.47/20,383.58
  6. Step 6: Final answer
    x = 20,313.39

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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.