Home / 14,378.70-21,568.05-13,751.40

Finding the Fourth Proportional to 14,378.70, 21,568.05 and 13,751.40

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Solution

The fourth proportional to 14,378.70, 21,568.05 and 13,751.40 is: 20,627.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.70 : 21,568.05 = 13,751.40 : x
  2. Step 2: Convert to fraction form
    14,378.70/21,568.05 = 13,751.40/x
  3. Step 3: Cross multiply
    14,378.70x = 21,568.05 × 13,751.40
  4. Step 4: Simplify right side
    14,378.70x = 296,590,882.77
  5. Step 5: Solve for x
    x = 296,590,882.77/14,378.70
  6. Step 6: Final answer
    x = 20,627.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.