Home / 20,995.96-31,493.90-14,402.18

Finding the Fourth Proportional to 20,995.96, 31,493.90 and 14,402.18

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Solution

The fourth proportional to 20,995.96, 31,493.90 and 14,402.18 is: 21,603.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.96 : 31,493.90 = 14,402.18 : x
  2. Step 2: Convert to fraction form
    20,995.96/31,493.90 = 14,402.18/x
  3. Step 3: Cross multiply
    20,995.96x = 31,493.90 × 14,402.18
  4. Step 4: Simplify right side
    20,995.96x = 453,580,816.70
  5. Step 5: Solve for x
    x = 453,580,816.70/20,995.96
  6. Step 6: Final answer
    x = 21,603.24

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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.