Home / 31,065.62-42,873.48-19,135.94

Finding the Fourth Proportional to 31,065.62, 42,873.48 and 19,135.94

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Solution

The fourth proportional to 31,065.62, 42,873.48 and 19,135.94 is: 26,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,065.62 : 42,873.48 = 19,135.94 : x
  2. Step 2: Convert to fraction form
    31,065.62/42,873.48 = 19,135.94/x
  3. Step 3: Cross multiply
    31,065.62x = 42,873.48 × 19,135.94
  4. Step 4: Simplify right side
    31,065.62x = 820,424,340.87
  5. Step 5: Solve for x
    x = 820,424,340.87/31,065.62
  6. Step 6: Final answer
    x = 26,409.40

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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.