Home / 30,115.68-41,557.88-16,686.14

Finding the Fourth Proportional to 30,115.68, 41,557.88 and 16,686.14

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Solution

The fourth proportional to 30,115.68, 41,557.88 and 16,686.14 is: 23,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115.68 : 41,557.88 = 16,686.14 : x
  2. Step 2: Convert to fraction form
    30,115.68/41,557.88 = 16,686.14/x
  3. Step 3: Cross multiply
    30,115.68x = 41,557.88 × 16,686.14
  4. Step 4: Simplify right side
    30,115.68x = 693,440,312.56
  5. Step 5: Solve for x
    x = 693,440,312.56/30,115.68
  6. Step 6: Final answer
    x = 23,025.89

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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.