Home / 28,011.21-42,033.21-15,541.66

Finding the Fourth Proportional to 28,011.21, 42,033.21 and 15,541.66

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Solution

The fourth proportional to 28,011.21, 42,033.21 and 15,541.66 is: 23,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.21 : 42,033.21 = 15,541.66 : x
  2. Step 2: Convert to fraction form
    28,011.21/42,033.21 = 15,541.66/x
  3. Step 3: Cross multiply
    28,011.21x = 42,033.21 × 15,541.66
  4. Step 4: Simplify right side
    28,011.21x = 653,265,858.53
  5. Step 5: Solve for x
    x = 653,265,858.53/28,011.21
  6. Step 6: Final answer
    x = 23,321.59

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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.