Home / 28,103.12-42,153.70-7,043.34

Finding the Fourth Proportional to 28,103.12, 42,153.70 and 7,043.34

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Solution

The fourth proportional to 28,103.12, 42,153.70 and 7,043.34 is: 10,564.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.12 : 42,153.70 = 7,043.34 : x
  2. Step 2: Convert to fraction form
    28,103.12/42,153.70 = 7,043.34/x
  3. Step 3: Cross multiply
    28,103.12x = 42,153.70 × 7,043.34
  4. Step 4: Simplify right side
    28,103.12x = 296,902,841.36
  5. Step 5: Solve for x
    x = 296,902,841.36/28,103.12
  6. Step 6: Final answer
    x = 10,564.76

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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.