Home / 31,020.63-42,808.62-16,873.48

Finding the Fourth Proportional to 31,020.63, 42,808.62 and 16,873.48

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Solution

The fourth proportional to 31,020.63, 42,808.62 and 16,873.48 is: 23,285.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,020.63 : 42,808.62 = 16,873.48 : x
  2. Step 2: Convert to fraction form
    31,020.63/42,808.62 = 16,873.48/x
  3. Step 3: Cross multiply
    31,020.63x = 42,808.62 × 16,873.48
  4. Step 4: Simplify right side
    31,020.63x = 722,330,393.40
  5. Step 5: Solve for x
    x = 722,330,393.40/31,020.63
  6. Step 6: Final answer
    x = 23,285.48

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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.