Home / 28,152.72-42,235.10-10,383.43

Finding the Fourth Proportional to 28,152.72, 42,235.10 and 10,383.43

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Solution

The fourth proportional to 28,152.72, 42,235.10 and 10,383.43 is: 15,577.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.72 : 42,235.10 = 10,383.43 : x
  2. Step 2: Convert to fraction form
    28,152.72/42,235.10 = 10,383.43/x
  3. Step 3: Cross multiply
    28,152.72x = 42,235.10 × 10,383.43
  4. Step 4: Simplify right side
    28,152.72x = 438,545,204.39
  5. Step 5: Solve for x
    x = 438,545,204.39/28,152.72
  6. Step 6: Final answer
    x = 15,577.37

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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.