Home / 31,735.12-43,798.80-18,307.12

Finding the Fourth Proportional to 31,735.12, 43,798.80 and 18,307.12

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Solution

The fourth proportional to 31,735.12, 43,798.80 and 18,307.12 is: 25,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,735.12 : 43,798.80 = 18,307.12 : x
  2. Step 2: Convert to fraction form
    31,735.12/43,798.80 = 18,307.12/x
  3. Step 3: Cross multiply
    31,735.12x = 43,798.80 × 18,307.12
  4. Step 4: Simplify right side
    31,735.12x = 801,829,887.46
  5. Step 5: Solve for x
    x = 801,829,887.46/31,735.12
  6. Step 6: Final answer
    x = 25,266.33

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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.