Home / 28,271.84-42,359.16-19,936.94

Finding the Fourth Proportional to 28,271.84, 42,359.16 and 19,936.94

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Solution

The fourth proportional to 28,271.84, 42,359.16 and 19,936.94 is: 29,871.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271.84 : 42,359.16 = 19,936.94 : x
  2. Step 2: Convert to fraction form
    28,271.84/42,359.16 = 19,936.94/x
  3. Step 3: Cross multiply
    28,271.84x = 42,359.16 × 19,936.94
  4. Step 4: Simplify right side
    28,271.84x = 844,512,031.37
  5. Step 5: Solve for x
    x = 844,512,031.37/28,271.84
  6. Step 6: Final answer
    x = 29,871.14

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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.