Home / 28,270.84-42,357.66-19,935.94

Finding the Fourth Proportional to 28,270.84, 42,357.66 and 19,935.94

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Solution

The fourth proportional to 28,270.84, 42,357.66 and 19,935.94 is: 29,869.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,270.84 : 42,357.66 = 19,935.94 : x
  2. Step 2: Convert to fraction form
    28,270.84/42,357.66 = 19,935.94/x
  3. Step 3: Cross multiply
    28,270.84x = 42,357.66 × 19,935.94
  4. Step 4: Simplify right side
    28,270.84x = 844,439,768.30
  5. Step 5: Solve for x
    x = 844,439,768.30/28,270.84
  6. Step 6: Final answer
    x = 29,869.64

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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.