Home / 30,671.35-42,330.95-17,243.71

Finding the Fourth Proportional to 30,671.35, 42,330.95 and 17,243.71

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Solution

The fourth proportional to 30,671.35, 42,330.95 and 17,243.71 is: 23,798.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,671.35 : 42,330.95 = 17,243.71 : x
  2. Step 2: Convert to fraction form
    30,671.35/42,330.95 = 17,243.71/x
  3. Step 3: Cross multiply
    30,671.35x = 42,330.95 × 17,243.71
  4. Step 4: Simplify right side
    30,671.35x = 729,942,625.82
  5. Step 5: Solve for x
    x = 729,942,625.82/30,671.35
  6. Step 6: Final answer
    x = 23,798.84

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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.