Home / 23,176.80-31,993.20-19,490.40

Finding the Fourth Proportional to 23,176.80, 31,993.20 and 19,490.40

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Solution

The fourth proportional to 23,176.80, 31,993.20 and 19,490.40 is: 26,904.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,176.80 : 31,993.20 = 19,490.40 : x
  2. Step 2: Convert to fraction form
    23,176.80/31,993.20 = 19,490.40/x
  3. Step 3: Cross multiply
    23,176.80x = 31,993.20 × 19,490.40
  4. Step 4: Simplify right side
    23,176.80x = 623,560,265.28
  5. Step 5: Solve for x
    x = 623,560,265.28/23,176.80
  6. Step 6: Final answer
    x = 26,904.50

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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.