Home / 31,512.64-43,485.76-17,362.88

Finding the Fourth Proportional to 31,512.64, 43,485.76 and 17,362.88

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Solution

The fourth proportional to 31,512.64, 43,485.76 and 17,362.88 is: 23,959.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.64 : 43,485.76 = 17,362.88 : x
  2. Step 2: Convert to fraction form
    31,512.64/43,485.76 = 17,362.88/x
  3. Step 3: Cross multiply
    31,512.64x = 43,485.76 × 17,362.88
  4. Step 4: Simplify right side
    31,512.64x = 755,038,032.59
  5. Step 5: Solve for x
    x = 755,038,032.59/31,512.64
  6. Step 6: Final answer
    x = 23,959.85

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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.