Home / 28,133.07-42,152.75-19,795.57

Finding the Fourth Proportional to 28,133.07, 42,152.75 and 19,795.57

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Solution

The fourth proportional to 28,133.07, 42,152.75 and 19,795.57 is: 29,660.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.07 : 42,152.75 = 19,795.57 : x
  2. Step 2: Convert to fraction form
    28,133.07/42,152.75 = 19,795.57/x
  3. Step 3: Cross multiply
    28,133.07x = 42,152.75 × 19,795.57
  4. Step 4: Simplify right side
    28,133.07x = 834,437,429.92
  5. Step 5: Solve for x
    x = 834,437,429.92/28,133.07
  6. Step 6: Final answer
    x = 29,660.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.