Home / 20,677.63-31,004.70-14,111.77

Finding the Fourth Proportional to 20,677.63, 31,004.70 and 14,111.77

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Solution

The fourth proportional to 20,677.63, 31,004.70 and 14,111.77 is: 21,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.63 : 31,004.70 = 14,111.77 : x
  2. Step 2: Convert to fraction form
    20,677.63/31,004.70 = 14,111.77/x
  3. Step 3: Cross multiply
    20,677.63x = 31,004.70 × 14,111.77
  4. Step 4: Simplify right side
    20,677.63x = 437,531,195.32
  5. Step 5: Solve for x
    x = 437,531,195.32/20,677.63
  6. Step 6: Final answer
    x = 21,159.64

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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.