Home / 22,068.08-30,450.79-12,988.05

Finding the Fourth Proportional to 22,068.08, 30,450.79 and 12,988.05

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Solution

The fourth proportional to 22,068.08, 30,450.79 and 12,988.05 is: 17,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,068.08 : 30,450.79 = 12,988.05 : x
  2. Step 2: Convert to fraction form
    22,068.08/30,450.79 = 12,988.05/x
  3. Step 3: Cross multiply
    22,068.08x = 30,450.79 × 12,988.05
  4. Step 4: Simplify right side
    22,068.08x = 395,496,212.05
  5. Step 5: Solve for x
    x = 395,496,212.05/22,068.08
  6. Step 6: Final answer
    x = 17,921.64

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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.