Home / 42,546.13-63,819.21-19,145.23

Finding the Fourth Proportional to 42,546.13, 63,819.21 and 19,145.23

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Solution

The fourth proportional to 42,546.13, 63,819.21 and 19,145.23 is: 28,717.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,546.13 : 63,819.21 = 19,145.23 : x
  2. Step 2: Convert to fraction form
    42,546.13/63,819.21 = 19,145.23/x
  3. Step 3: Cross multiply
    42,546.13x = 63,819.21 × 19,145.23
  4. Step 4: Simplify right side
    42,546.13x = 1,221,833,453.87
  5. Step 5: Solve for x
    x = 1,221,833,453.87/42,546.13
  6. Step 6: Final answer
    x = 28,717.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.