Home / 20,746.70-28,607.80-14,020.66

Finding the Fourth Proportional to 20,746.70, 28,607.80 and 14,020.66

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Solution

The fourth proportional to 20,746.70, 28,607.80 and 14,020.66 is: 19,333.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.70 : 28,607.80 = 14,020.66 : x
  2. Step 2: Convert to fraction form
    20,746.70/28,607.80 = 14,020.66/x
  3. Step 3: Cross multiply
    20,746.70x = 28,607.80 × 14,020.66
  4. Step 4: Simplify right side
    20,746.70x = 401,100,237.15
  5. Step 5: Solve for x
    x = 401,100,237.15/20,746.70
  6. Step 6: Final answer
    x = 19,333.21

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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.