Home / 39,679.56-54,760.32-28,927.08

Finding the Fourth Proportional to 39,679.56, 54,760.32 and 28,927.08

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Solution

The fourth proportional to 39,679.56, 54,760.32 and 28,927.08 is: 39,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,679.56 : 54,760.32 = 28,927.08 : x
  2. Step 2: Convert to fraction form
    39,679.56/54,760.32 = 28,927.08/x
  3. Step 3: Cross multiply
    39,679.56x = 54,760.32 × 28,927.08
  4. Step 4: Simplify right side
    39,679.56x = 1,584,056,157.47
  5. Step 5: Solve for x
    x = 1,584,056,157.47/39,679.56
  6. Step 6: Final answer
    x = 39,921.21

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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.