Home / 21,582.28-29,782.92-12,022.12

Finding the Fourth Proportional to 21,582.28, 29,782.92 and 12,022.12

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Solution

The fourth proportional to 21,582.28, 29,782.92 and 12,022.12 is: 16,590.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,582.28 : 29,782.92 = 12,022.12 : x
  2. Step 2: Convert to fraction form
    21,582.28/29,782.92 = 12,022.12/x
  3. Step 3: Cross multiply
    21,582.28x = 29,782.92 × 12,022.12
  4. Step 4: Simplify right side
    21,582.28x = 358,053,838.19
  5. Step 5: Solve for x
    x = 358,053,838.19/21,582.28
  6. Step 6: Final answer
    x = 16,590.18

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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.