Home / 31,427.10-43,369.39-17,280.86

Finding the Fourth Proportional to 31,427.10, 43,369.39 and 17,280.86

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Solution

The fourth proportional to 31,427.10, 43,369.39 and 17,280.86 is: 23,847.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.10 : 43,369.39 = 17,280.86 : x
  2. Step 2: Convert to fraction form
    31,427.10/43,369.39 = 17,280.86/x
  3. Step 3: Cross multiply
    31,427.10x = 43,369.39 × 17,280.86
  4. Step 4: Simplify right side
    31,427.10x = 749,460,356.88
  5. Step 5: Solve for x
    x = 749,460,356.88/31,427.10
  6. Step 6: Final answer
    x = 23,847.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.