Home / 20,964.16-28,924.33-12,461.95

Finding the Fourth Proportional to 20,964.16, 28,924.33 and 12,461.95

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Solution

The fourth proportional to 20,964.16, 28,924.33 and 12,461.95 is: 17,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,964.16 : 28,924.33 = 12,461.95 : x
  2. Step 2: Convert to fraction form
    20,964.16/28,924.33 = 12,461.95/x
  3. Step 3: Cross multiply
    20,964.16x = 28,924.33 × 12,461.95
  4. Step 4: Simplify right side
    20,964.16x = 360,453,554.24
  5. Step 5: Solve for x
    x = 360,453,554.24/20,964.16
  6. Step 6: Final answer
    x = 17,193.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.