Home / 28,076.12-42,101.90-10,533.65

Finding the Fourth Proportional to 28,076.12, 42,101.90 and 10,533.65

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Solution

The fourth proportional to 28,076.12, 42,101.90 and 10,533.65 is: 15,795.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.12 : 42,101.90 = 10,533.65 : x
  2. Step 2: Convert to fraction form
    28,076.12/42,101.90 = 10,533.65/x
  3. Step 3: Cross multiply
    28,076.12x = 42,101.90 × 10,533.65
  4. Step 4: Simplify right side
    28,076.12x = 443,486,415.76
  5. Step 5: Solve for x
    x = 443,486,415.76/28,076.12
  6. Step 6: Final answer
    x = 15,795.86

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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.