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Finding the Fourth Proportional to 30,737.91, 42,417.91 and 17,310.49

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Solution

The fourth proportional to 30,737.91, 42,417.91 and 17,310.49 is: 23,888.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,737.91 : 42,417.91 = 17,310.49 : x
  2. Step 2: Convert to fraction form
    30,737.91/42,417.91 = 17,310.49/x
  3. Step 3: Cross multiply
    30,737.91x = 42,417.91 × 17,310.49
  4. Step 4: Simplify right side
    30,737.91x = 734,274,806.88
  5. Step 5: Solve for x
    x = 734,274,806.88/30,737.91
  6. Step 6: Final answer
    x = 23,888.25

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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.