Home / 30,204.39-45,278.64-11,478.81

Finding the Fourth Proportional to 30,204.39, 45,278.64 and 11,478.81

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Solution

The fourth proportional to 30,204.39, 45,278.64 and 11,478.81 is: 17,207.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,204.39 : 45,278.64 = 11,478.81 : x
  2. Step 2: Convert to fraction form
    30,204.39/45,278.64 = 11,478.81/x
  3. Step 3: Cross multiply
    30,204.39x = 45,278.64 × 11,478.81
  4. Step 4: Simplify right side
    30,204.39x = 519,744,905.62
  5. Step 5: Solve for x
    x = 519,744,905.62/30,204.39
  6. Step 6: Final answer
    x = 17,207.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.