Home / 31,977.64-44,128.29-18,365.32

Finding the Fourth Proportional to 31,977.64, 44,128.29 and 18,365.32

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Solution

The fourth proportional to 31,977.64, 44,128.29 and 18,365.32 is: 25,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.64 : 44,128.29 = 18,365.32 : x
  2. Step 2: Convert to fraction form
    31,977.64/44,128.29 = 18,365.32/x
  3. Step 3: Cross multiply
    31,977.64x = 44,128.29 × 18,365.32
  4. Step 4: Simplify right side
    31,977.64x = 810,430,166.90
  5. Step 5: Solve for x
    x = 810,430,166.90/31,977.64
  6. Step 6: Final answer
    x = 25,343.65

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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.