Home / 42,628.14-63,939.90-13,045.98

Finding the Fourth Proportional to 42,628.14, 63,939.90 and 13,045.98

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Solution

The fourth proportional to 42,628.14, 63,939.90 and 13,045.98 is: 19,568.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,628.14 : 63,939.90 = 13,045.98 : x
  2. Step 2: Convert to fraction form
    42,628.14/63,939.90 = 13,045.98/x
  3. Step 3: Cross multiply
    42,628.14x = 63,939.90 × 13,045.98
  4. Step 4: Simplify right side
    42,628.14x = 834,158,656.60
  5. Step 5: Solve for x
    x = 834,158,656.60/42,628.14
  6. Step 6: Final answer
    x = 19,568.26

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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.