Home / 20,305.41-28,024.93-11,812.46

Finding the Fourth Proportional to 20,305.41, 28,024.93 and 11,812.46

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Solution

The fourth proportional to 20,305.41, 28,024.93 and 11,812.46 is: 16,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,305.41 : 28,024.93 = 11,812.46 : x
  2. Step 2: Convert to fraction form
    20,305.41/28,024.93 = 11,812.46/x
  3. Step 3: Cross multiply
    20,305.41x = 28,024.93 × 11,812.46
  4. Step 4: Simplify right side
    20,305.41x = 331,043,364.63
  5. Step 5: Solve for x
    x = 331,043,364.63/20,305.41
  6. Step 6: Final answer
    x = 16,303.21

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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.