Home / 31,918.64-44,047.52-18,489.60

Finding the Fourth Proportional to 31,918.64, 44,047.52 and 18,489.60

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Solution

The fourth proportional to 31,918.64, 44,047.52 and 18,489.60 is: 25,515.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,918.64 : 44,047.52 = 18,489.60 : x
  2. Step 2: Convert to fraction form
    31,918.64/44,047.52 = 18,489.60/x
  3. Step 3: Cross multiply
    31,918.64x = 44,047.52 × 18,489.60
  4. Step 4: Simplify right side
    31,918.64x = 814,421,025.79
  5. Step 5: Solve for x
    x = 814,421,025.79/31,918.64
  6. Step 6: Final answer
    x = 25,515.53

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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.