Home / 42,528.54-63,799.68-12,939.41

Finding the Fourth Proportional to 42,528.54, 63,799.68 and 12,939.41

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Solution

The fourth proportional to 42,528.54, 63,799.68 and 12,939.41 is: 19,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,528.54 : 63,799.68 = 12,939.41 : x
  2. Step 2: Convert to fraction form
    42,528.54/63,799.68 = 12,939.41/x
  3. Step 3: Cross multiply
    42,528.54x = 63,799.68 × 12,939.41
  4. Step 4: Simplify right side
    42,528.54x = 825,529,833.69
  5. Step 5: Solve for x
    x = 825,529,833.69/42,528.54
  6. Step 6: Final answer
    x = 19,411.20

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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.