Home / 30,890.08-42,627.16-16,742.62

Finding the Fourth Proportional to 30,890.08, 42,627.16 and 16,742.62

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Solution

The fourth proportional to 30,890.08, 42,627.16 and 16,742.62 is: 23,104.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,890.08 : 42,627.16 = 16,742.62 : x
  2. Step 2: Convert to fraction form
    30,890.08/42,627.16 = 16,742.62/x
  3. Step 3: Cross multiply
    30,890.08x = 42,627.16 × 16,742.62
  4. Step 4: Simplify right side
    30,890.08x = 713,690,341.56
  5. Step 5: Solve for x
    x = 713,690,341.56/30,890.08
  6. Step 6: Final answer
    x = 23,104.19

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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.