Home / 42,188.28-63,288-15,530.64

Finding the Fourth Proportional to 42,188.28, 63,288 and 15,530.64

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Solution

The fourth proportional to 42,188.28, 63,288 and 15,530.64 is: 23,298.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,188.28 : 63,288 = 15,530.64 : x
  2. Step 2: Convert to fraction form
    42,188.28/63,288 = 15,530.64/x
  3. Step 3: Cross multiply
    42,188.28x = 63,288 × 15,530.64
  4. Step 4: Simplify right side
    42,188.28x = 982,903,144.32
  5. Step 5: Solve for x
    x = 982,903,144.32/42,188.28
  6. Step 6: Final answer
    x = 23,298.01

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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.