Home / 21,176.48-31,758.22-14,644.64

Finding the Fourth Proportional to 21,176.48, 31,758.22 and 14,644.64

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Solution

The fourth proportional to 21,176.48, 31,758.22 and 14,644.64 is: 21,962.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.48 : 31,758.22 = 14,644.64 : x
  2. Step 2: Convert to fraction form
    21,176.48/31,758.22 = 14,644.64/x
  3. Step 3: Cross multiply
    21,176.48x = 31,758.22 × 14,644.64
  4. Step 4: Simplify right side
    21,176.48x = 465,087,698.94
  5. Step 5: Solve for x
    x = 465,087,698.94/21,176.48
  6. Step 6: Final answer
    x = 21,962.46

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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.