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Finding the Fourth Proportional to 22,239, 30,694.95 and 14,686.83

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Solution

The fourth proportional to 22,239, 30,694.95 and 14,686.83 is: 20,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,239 : 30,694.95 = 14,686.83 : x
  2. Step 2: Convert to fraction form
    22,239/30,694.95 = 14,686.83/x
  3. Step 3: Cross multiply
    22,239x = 30,694.95 × 14,686.83
  4. Step 4: Simplify right side
    22,239x = 450,811,512.51
  5. Step 5: Solve for x
    x = 450,811,512.51/22,239
  6. Step 6: Final answer
    x = 20,271.21

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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.