Home / 30,117.87-41,559.70-17,372.21

Finding the Fourth Proportional to 30,117.87, 41,559.70 and 17,372.21

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Solution

The fourth proportional to 30,117.87, 41,559.70 and 17,372.21 is: 23,971.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,117.87 : 41,559.70 = 17,372.21 : x
  2. Step 2: Convert to fraction form
    30,117.87/41,559.70 = 17,372.21/x
  3. Step 3: Cross multiply
    30,117.87x = 41,559.70 × 17,372.21
  4. Step 4: Simplify right side
    30,117.87x = 721,983,835.94
  5. Step 5: Solve for x
    x = 721,983,835.94/30,117.87
  6. Step 6: Final answer
    x = 23,971.94

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Double scale
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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.