Home / 30,512.39-42,063.76-22,431.79

Finding the Fourth Proportional to 30,512.39, 42,063.76 and 22,431.79

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Solution

The fourth proportional to 30,512.39, 42,063.76 and 22,431.79 is: 30,924.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,512.39 : 42,063.76 = 22,431.79 : x
  2. Step 2: Convert to fraction form
    30,512.39/42,063.76 = 22,431.79/x
  3. Step 3: Cross multiply
    30,512.39x = 42,063.76 × 22,431.79
  4. Step 4: Simplify right side
    30,512.39x = 943,565,308.46
  5. Step 5: Solve for x
    x = 943,565,308.46/30,512.39
  6. Step 6: Final answer
    x = 30,924.01

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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.