Home / 30,031.97-41,443.47-16,603.79

Finding the Fourth Proportional to 30,031.97, 41,443.47 and 16,603.79

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Solution

The fourth proportional to 30,031.97, 41,443.47 and 16,603.79 is: 22,912.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,031.97 : 41,443.47 = 16,603.79 : x
  2. Step 2: Convert to fraction form
    30,031.97/41,443.47 = 16,603.79/x
  3. Step 3: Cross multiply
    30,031.97x = 41,443.47 × 16,603.79
  4. Step 4: Simplify right side
    30,031.97x = 688,118,465.53
  5. Step 5: Solve for x
    x = 688,118,465.53/30,031.97
  6. Step 6: Final answer
    x = 22,912.87

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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.