Home / 39,632.64-54,693.12-21,727.74

Finding the Fourth Proportional to 39,632.64, 54,693.12 and 21,727.74

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Solution

The fourth proportional to 39,632.64, 54,693.12 and 21,727.74 is: 29,984.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,632.64 : 54,693.12 = 21,727.74 : x
  2. Step 2: Convert to fraction form
    39,632.64/54,693.12 = 21,727.74/x
  3. Step 3: Cross multiply
    39,632.64x = 54,693.12 × 21,727.74
  4. Step 4: Simplify right side
    39,632.64x = 1,188,357,891.15
  5. Step 5: Solve for x
    x = 1,188,357,891.15/39,632.64
  6. Step 6: Final answer
    x = 29,984.32

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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.