Home / 20,995.46-31,493.15-14,401.68

Finding the Fourth Proportional to 20,995.46, 31,493.15 and 14,401.68

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Solution

The fourth proportional to 20,995.46, 31,493.15 and 14,401.68 is: 21,602.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.46 : 31,493.15 = 14,401.68 : x
  2. Step 2: Convert to fraction form
    20,995.46/31,493.15 = 14,401.68/x
  3. Step 3: Cross multiply
    20,995.46x = 31,493.15 × 14,401.68
  4. Step 4: Simplify right side
    20,995.46x = 453,554,268.49
  5. Step 5: Solve for x
    x = 453,554,268.49/20,995.46
  6. Step 6: Final answer
    x = 21,602.49

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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.