Home / 39,330.90-54,168.75-38,601.90

Finding the Fourth Proportional to 39,330.90, 54,168.75 and 38,601.90

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Solution

The fourth proportional to 39,330.90, 54,168.75 and 38,601.90 is: 53,164.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,330.90 : 54,168.75 = 38,601.90 : x
  2. Step 2: Convert to fraction form
    39,330.90/54,168.75 = 38,601.90/x
  3. Step 3: Cross multiply
    39,330.90x = 54,168.75 × 38,601.90
  4. Step 4: Simplify right side
    39,330.90x = 2,091,016,670.63
  5. Step 5: Solve for x
    x = 2,091,016,670.63/39,330.90
  6. Step 6: Final answer
    x = 53,164.73

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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.