Home / 42,619.98-63,919.71-13,038.08

Finding the Fourth Proportional to 42,619.98, 63,919.71 and 13,038.08

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Solution

The fourth proportional to 42,619.98, 63,919.71 and 13,038.08 is: 19,553.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,619.98 : 63,919.71 = 13,038.08 : x
  2. Step 2: Convert to fraction form
    42,619.98/63,919.71 = 13,038.08/x
  3. Step 3: Cross multiply
    42,619.98x = 63,919.71 × 13,038.08
  4. Step 4: Simplify right side
    42,619.98x = 833,389,972.96
  5. Step 5: Solve for x
    x = 833,389,972.96/42,619.98
  6. Step 6: Final answer
    x = 19,553.97

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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.