Home / 27,624.64-38,136.45-21,561.88

Finding the Fourth Proportional to 27,624.64, 38,136.45 and 21,561.88

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Solution

The fourth proportional to 27,624.64, 38,136.45 and 21,561.88 is: 29,766.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,624.64 : 38,136.45 = 21,561.88 : x
  2. Step 2: Convert to fraction form
    27,624.64/38,136.45 = 21,561.88/x
  3. Step 3: Cross multiply
    27,624.64x = 38,136.45 × 21,561.88
  4. Step 4: Simplify right side
    27,624.64x = 822,293,558.53
  5. Step 5: Solve for x
    x = 822,293,558.53/27,624.64
  6. Step 6: Final answer
    x = 29,766.67

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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.