Home / 28,665.05-42,973.07-10,885.76

Finding the Fourth Proportional to 28,665.05, 42,973.07 and 10,885.76

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Solution

The fourth proportional to 28,665.05, 42,973.07 and 10,885.76 is: 16,319.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,665.05 : 42,973.07 = 10,885.76 : x
  2. Step 2: Convert to fraction form
    28,665.05/42,973.07 = 10,885.76/x
  3. Step 3: Cross multiply
    28,665.05x = 42,973.07 × 10,885.76
  4. Step 4: Simplify right side
    28,665.05x = 467,794,311.62
  5. Step 5: Solve for x
    x = 467,794,311.62/28,665.05
  6. Step 6: Final answer
    x = 16,319.33

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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.