Home / 14,220.84-21,329.39-4,225.38

Finding the Fourth Proportional to 14,220.84, 21,329.39 and 4,225.38

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Solution

The fourth proportional to 14,220.84, 21,329.39 and 4,225.38 is: 6,337.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.84 : 21,329.39 = 4,225.38 : x
  2. Step 2: Convert to fraction form
    14,220.84/21,329.39 = 4,225.38/x
  3. Step 3: Cross multiply
    14,220.84x = 21,329.39 × 4,225.38
  4. Step 4: Simplify right side
    14,220.84x = 90,124,756.79
  5. Step 5: Solve for x
    x = 90,124,756.79/14,220.84
  6. Step 6: Final answer
    x = 6,337.51

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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.