Home / 22,205.40-30,643.08-12,133.62

Finding the Fourth Proportional to 22,205.40, 30,643.08 and 12,133.62

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Solution

The fourth proportional to 22,205.40, 30,643.08 and 12,133.62 is: 16,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,205.40 : 30,643.08 = 12,133.62 : x
  2. Step 2: Convert to fraction form
    22,205.40/30,643.08 = 12,133.62/x
  3. Step 3: Cross multiply
    22,205.40x = 30,643.08 × 12,133.62
  4. Step 4: Simplify right side
    22,205.40x = 371,811,488.35
  5. Step 5: Solve for x
    x = 371,811,488.35/22,205.40
  6. Step 6: Final answer
    x = 16,744.19

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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.