Home / 31,505.99-43,477.23-18,077.03

Finding the Fourth Proportional to 31,505.99, 43,477.23 and 18,077.03

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Solution

The fourth proportional to 31,505.99, 43,477.23 and 18,077.03 is: 24,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.99 : 43,477.23 = 18,077.03 : x
  2. Step 2: Convert to fraction form
    31,505.99/43,477.23 = 18,077.03/x
  3. Step 3: Cross multiply
    31,505.99x = 43,477.23 × 18,077.03
  4. Step 4: Simplify right side
    31,505.99x = 785,938,973.64
  5. Step 5: Solve for x
    x = 785,938,973.64/31,505.99
  6. Step 6: Final answer
    x = 24,945.70

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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.