Home / 22,054.12-30,434.55-12,984.75

Finding the Fourth Proportional to 22,054.12, 30,434.55 and 12,984.75

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Solution

The fourth proportional to 22,054.12, 30,434.55 and 12,984.75 is: 17,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,054.12 : 30,434.55 = 12,984.75 : x
  2. Step 2: Convert to fraction form
    22,054.12/30,434.55 = 12,984.75/x
  3. Step 3: Cross multiply
    22,054.12x = 30,434.55 × 12,984.75
  4. Step 4: Simplify right side
    22,054.12x = 395,185,023.11
  5. Step 5: Solve for x
    x = 395,185,023.11/22,054.12
  6. Step 6: Final answer
    x = 17,918.88

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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.