Home / 39,913.56-55,078.38-22,915.08

Finding the Fourth Proportional to 39,913.56, 55,078.38 and 22,915.08

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Solution

The fourth proportional to 39,913.56, 55,078.38 and 22,915.08 is: 31,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,913.56 : 55,078.38 = 22,915.08 : x
  2. Step 2: Convert to fraction form
    39,913.56/55,078.38 = 22,915.08/x
  3. Step 3: Cross multiply
    39,913.56x = 55,078.38 × 22,915.08
  4. Step 4: Simplify right side
    39,913.56x = 1,262,125,483.97
  5. Step 5: Solve for x
    x = 1,262,125,483.97/39,913.56
  6. Step 6: Final answer
    x = 31,621.47

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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.