Home / 20,304.54-28,024.79-12,345.08

Finding the Fourth Proportional to 20,304.54, 28,024.79 and 12,345.08

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Solution

The fourth proportional to 20,304.54, 28,024.79 and 12,345.08 is: 17,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.54 : 28,024.79 = 12,345.08 : x
  2. Step 2: Convert to fraction form
    20,304.54/28,024.79 = 12,345.08/x
  3. Step 3: Cross multiply
    20,304.54x = 28,024.79 × 12,345.08
  4. Step 4: Simplify right side
    20,304.54x = 345,968,072.68
  5. Step 5: Solve for x
    x = 345,968,072.68/20,304.54
  6. Step 6: Final answer
    x = 17,038.95

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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.