Home / 21,303.63-29,397.78-12,227.07

Finding the Fourth Proportional to 21,303.63, 29,397.78 and 12,227.07

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Solution

The fourth proportional to 21,303.63, 29,397.78 and 12,227.07 is: 16,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303.63 : 29,397.78 = 12,227.07 : x
  2. Step 2: Convert to fraction form
    21,303.63/29,397.78 = 12,227.07/x
  3. Step 3: Cross multiply
    21,303.63x = 29,397.78 × 12,227.07
  4. Step 4: Simplify right side
    21,303.63x = 359,448,713.90
  5. Step 5: Solve for x
    x = 359,448,713.90/21,303.63
  6. Step 6: Final answer
    x = 16,872.65

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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.