Home / 22,109.64-30,459.42-15,383.70

Finding the Fourth Proportional to 22,109.64, 30,459.42 and 15,383.70

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Solution

The fourth proportional to 22,109.64, 30,459.42 and 15,383.70 is: 21,193.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,109.64 : 30,459.42 = 15,383.70 : x
  2. Step 2: Convert to fraction form
    22,109.64/30,459.42 = 15,383.70/x
  3. Step 3: Cross multiply
    22,109.64x = 30,459.42 × 15,383.70
  4. Step 4: Simplify right side
    22,109.64x = 468,578,579.45
  5. Step 5: Solve for x
    x = 468,578,579.45/22,109.64
  6. Step 6: Final answer
    x = 21,193.41

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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.