Home / 19,915.40-27,491.76-14,176.56

Finding the Fourth Proportional to 19,915.40, 27,491.76 and 14,176.56

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Solution

The fourth proportional to 19,915.40, 27,491.76 and 14,176.56 is: 19,569.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.40 : 27,491.76 = 14,176.56 : x
  2. Step 2: Convert to fraction form
    19,915.40/27,491.76 = 14,176.56/x
  3. Step 3: Cross multiply
    19,915.40x = 27,491.76 × 14,176.56
  4. Step 4: Simplify right side
    19,915.40x = 389,738,585.15
  5. Step 5: Solve for x
    x = 389,738,585.15/19,915.40
  6. Step 6: Final answer
    x = 19,569.71

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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.