Home / 39,658.14-54,727.02-21,752.70

Finding the Fourth Proportional to 39,658.14, 54,727.02 and 21,752.70

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Solution

The fourth proportional to 39,658.14, 54,727.02 and 21,752.70 is: 30,018.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,658.14 : 54,727.02 = 21,752.70 : x
  2. Step 2: Convert to fraction form
    39,658.14/54,727.02 = 21,752.70/x
  3. Step 3: Cross multiply
    39,658.14x = 54,727.02 × 21,752.70
  4. Step 4: Simplify right side
    39,658.14x = 1,190,460,447.95
  5. Step 5: Solve for x
    x = 1,190,460,447.95/39,658.14
  6. Step 6: Final answer
    x = 30,018.06

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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.