Home / 20,973.58-31,460.37-14,379.78

Finding the Fourth Proportional to 20,973.58, 31,460.37 and 14,379.78

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Solution

The fourth proportional to 20,973.58, 31,460.37 and 14,379.78 is: 21,569.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.58 : 31,460.37 = 14,379.78 : x
  2. Step 2: Convert to fraction form
    20,973.58/31,460.37 = 14,379.78/x
  3. Step 3: Cross multiply
    20,973.58x = 31,460.37 × 14,379.78
  4. Step 4: Simplify right side
    20,973.58x = 452,393,086.41
  5. Step 5: Solve for x
    x = 452,393,086.41/20,973.58
  6. Step 6: Final answer
    x = 21,569.66

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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.