Home / 31,845.02-43,946.39-19,915.28

Finding the Fourth Proportional to 31,845.02, 43,946.39 and 19,915.28

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Solution

The fourth proportional to 31,845.02, 43,946.39 and 19,915.28 is: 27,483.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,845.02 : 43,946.39 = 19,915.28 : x
  2. Step 2: Convert to fraction form
    31,845.02/43,946.39 = 19,915.28/x
  3. Step 3: Cross multiply
    31,845.02x = 43,946.39 × 19,915.28
  4. Step 4: Simplify right side
    31,845.02x = 875,204,661.84
  5. Step 5: Solve for x
    x = 875,204,661.84/31,845.02
  6. Step 6: Final answer
    x = 27,483.25

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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.