Home / 28,132.70-42,208.77-10,607.54

Finding the Fourth Proportional to 28,132.70, 42,208.77 and 10,607.54

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Solution

The fourth proportional to 28,132.70, 42,208.77 and 10,607.54 is: 15,914.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132.70 : 42,208.77 = 10,607.54 : x
  2. Step 2: Convert to fraction form
    28,132.70/42,208.77 = 10,607.54/x
  3. Step 3: Cross multiply
    28,132.70x = 42,208.77 × 10,607.54
  4. Step 4: Simplify right side
    28,132.70x = 447,731,005.08
  5. Step 5: Solve for x
    x = 447,731,005.08/28,132.70
  6. Step 6: Final answer
    x = 15,914.97

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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.