Home / 39,728.61-54,835.45-22,738.05

Finding the Fourth Proportional to 39,728.61, 54,835.45 and 22,738.05

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Solution

The fourth proportional to 39,728.61, 54,835.45 and 22,738.05 is: 31,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,728.61 : 54,835.45 = 22,738.05 : x
  2. Step 2: Convert to fraction form
    39,728.61/54,835.45 = 22,738.05/x
  3. Step 3: Cross multiply
    39,728.61x = 54,835.45 × 22,738.05
  4. Step 4: Simplify right side
    39,728.61x = 1,246,851,147.03
  5. Step 5: Solve for x
    x = 1,246,851,147.03/39,728.61
  6. Step 6: Final answer
    x = 31,384.21

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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.