Home / 14,640.16-21,982.11-14,421.46

Finding the Fourth Proportional to 14,640.16, 21,982.11 and 14,421.46

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Solution

The fourth proportional to 14,640.16, 21,982.11 and 14,421.46 is: 21,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.16 : 21,982.11 = 14,421.46 : x
  2. Step 2: Convert to fraction form
    14,640.16/21,982.11 = 14,421.46/x
  3. Step 3: Cross multiply
    14,640.16x = 21,982.11 × 14,421.46
  4. Step 4: Simplify right side
    14,640.16x = 317,013,938.06
  5. Step 5: Solve for x
    x = 317,013,938.06/14,640.16
  6. Step 6: Final answer
    x = 21,653.73

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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.