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Finding the Fourth Proportional to 30,465.88, 42,041.17 and 16,853.11

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Solution

The fourth proportional to 30,465.88, 42,041.17 and 16,853.11 is: 23,256.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,465.88 : 42,041.17 = 16,853.11 : x
  2. Step 2: Convert to fraction form
    30,465.88/42,041.17 = 16,853.11/x
  3. Step 3: Cross multiply
    30,465.88x = 42,041.17 × 16,853.11
  4. Step 4: Simplify right side
    30,465.88x = 708,524,462.54
  5. Step 5: Solve for x
    x = 708,524,462.54/30,465.88
  6. Step 6: Final answer
    x = 23,256.33

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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.