Home / 42,273.68-63,412.12-18,900.32

Finding the Fourth Proportional to 42,273.68, 63,412.12 and 18,900.32

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Solution

The fourth proportional to 42,273.68, 63,412.12 and 18,900.32 is: 28,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,273.68 : 63,412.12 = 18,900.32 : x
  2. Step 2: Convert to fraction form
    42,273.68/63,412.12 = 18,900.32/x
  3. Step 3: Cross multiply
    42,273.68x = 63,412.12 × 18,900.32
  4. Step 4: Simplify right side
    42,273.68x = 1,198,509,359.88
  5. Step 5: Solve for x
    x = 1,198,509,359.88/42,273.68
  6. Step 6: Final answer
    x = 28,351.20

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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.