Home / 21,668.18-29,873.17-17,206.70

Finding the Fourth Proportional to 21,668.18, 29,873.17 and 17,206.70

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Solution

The fourth proportional to 21,668.18, 29,873.17 and 17,206.70 is: 23,722.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.18 : 29,873.17 = 17,206.70 : x
  2. Step 2: Convert to fraction form
    21,668.18/29,873.17 = 17,206.70/x
  3. Step 3: Cross multiply
    21,668.18x = 29,873.17 × 17,206.70
  4. Step 4: Simplify right side
    21,668.18x = 514,018,674.24
  5. Step 5: Solve for x
    x = 514,018,674.24/21,668.18
  6. Step 6: Final answer
    x = 23,722.28

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1.5x scale

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.