Home / 42,586.68-63,880.08-11,419.56

Finding the Fourth Proportional to 42,586.68, 63,880.08 and 11,419.56

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Solution

The fourth proportional to 42,586.68, 63,880.08 and 11,419.56 is: 17,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,586.68 : 63,880.08 = 11,419.56 : x
  2. Step 2: Convert to fraction form
    42,586.68/63,880.08 = 11,419.56/x
  3. Step 3: Cross multiply
    42,586.68x = 63,880.08 × 11,419.56
  4. Step 4: Simplify right side
    42,586.68x = 729,482,406.36
  5. Step 5: Solve for x
    x = 729,482,406.36/42,586.68
  6. Step 6: Final answer
    x = 17,129.36

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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.