Home / 21,176.49-31,758.22-14,644.65

Finding the Fourth Proportional to 21,176.49, 31,758.22 and 14,644.65

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Solution

The fourth proportional to 21,176.49, 31,758.22 and 14,644.65 is: 21,962.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.49 : 31,758.22 = 14,644.65 : x
  2. Step 2: Convert to fraction form
    21,176.49/31,758.22 = 14,644.65/x
  3. Step 3: Cross multiply
    21,176.49x = 31,758.22 × 14,644.65
  4. Step 4: Simplify right side
    21,176.49x = 465,088,016.52
  5. Step 5: Solve for x
    x = 465,088,016.52/21,176.49
  6. Step 6: Final answer
    x = 21,962.47

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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.