Home / 30,446.39-42,001.73-18,501.73

Finding the Fourth Proportional to 30,446.39, 42,001.73 and 18,501.73

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Solution

The fourth proportional to 30,446.39, 42,001.73 and 18,501.73 is: 25,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,446.39 : 42,001.73 = 18,501.73 : x
  2. Step 2: Convert to fraction form
    30,446.39/42,001.73 = 18,501.73/x
  3. Step 3: Cross multiply
    30,446.39x = 42,001.73 × 18,501.73
  4. Step 4: Simplify right side
    30,446.39x = 777,104,667.99
  5. Step 5: Solve for x
    x = 777,104,667.99/30,446.39
  6. Step 6: Final answer
    x = 25,523.70

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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.