Home / 30,910.07-42,655.40-17,480.83

Finding the Fourth Proportional to 30,910.07, 42,655.40 and 17,480.83

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Solution

The fourth proportional to 30,910.07, 42,655.40 and 17,480.83 is: 24,123.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,910.07 : 42,655.40 = 17,480.83 : x
  2. Step 2: Convert to fraction form
    30,910.07/42,655.40 = 17,480.83/x
  3. Step 3: Cross multiply
    30,910.07x = 42,655.40 × 17,480.83
  4. Step 4: Simplify right side
    30,910.07x = 745,651,795.98
  5. Step 5: Solve for x
    x = 745,651,795.98/30,910.07
  6. Step 6: Final answer
    x = 24,123.26

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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.