Home / 30,699.57-42,362.20-17,269.68

Finding the Fourth Proportional to 30,699.57, 42,362.20 and 17,269.68

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Solution

The fourth proportional to 30,699.57, 42,362.20 and 17,269.68 is: 23,830.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,699.57 : 42,362.20 = 17,269.68 : x
  2. Step 2: Convert to fraction form
    30,699.57/42,362.20 = 17,269.68/x
  3. Step 3: Cross multiply
    30,699.57x = 42,362.20 × 17,269.68
  4. Step 4: Simplify right side
    30,699.57x = 731,581,594.92
  5. Step 5: Solve for x
    x = 731,581,594.92/30,699.57
  6. Step 6: Final answer
    x = 23,830.35

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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.