Home / 27,628.32-38,141.49-21,565.53

Finding the Fourth Proportional to 27,628.32, 38,141.49 and 21,565.53

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Solution

The fourth proportional to 27,628.32, 38,141.49 and 21,565.53 is: 29,771.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,628.32 : 38,141.49 = 21,565.53 : x
  2. Step 2: Convert to fraction form
    27,628.32/38,141.49 = 21,565.53/x
  3. Step 3: Cross multiply
    27,628.32x = 38,141.49 × 21,565.53
  4. Step 4: Simplify right side
    27,628.32x = 822,541,446.84
  5. Step 5: Solve for x
    x = 822,541,446.84/27,628.32
  6. Step 6: Final answer
    x = 29,771.68

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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.