Home / 42,199.20-63,259.20-15,921.60

Finding the Fourth Proportional to 42,199.20, 63,259.20 and 15,921.60

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Solution

The fourth proportional to 42,199.20, 63,259.20 and 15,921.60 is: 23,867.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,199.20 : 63,259.20 = 15,921.60 : x
  2. Step 2: Convert to fraction form
    42,199.20/63,259.20 = 15,921.60/x
  3. Step 3: Cross multiply
    42,199.20x = 63,259.20 × 15,921.60
  4. Step 4: Simplify right side
    42,199.20x = 1,007,187,678.72
  5. Step 5: Solve for x
    x = 1,007,187,678.72/42,199.20
  6. Step 6: Final answer
    x = 23,867.46

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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.