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Finding the Fourth Proportional to 42,498.36, 63,747.02 and 19,108.28

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Solution

The fourth proportional to 42,498.36, 63,747.02 and 19,108.28 is: 28,662.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,498.36 : 63,747.02 = 19,108.28 : x
  2. Step 2: Convert to fraction form
    42,498.36/63,747.02 = 19,108.28/x
  3. Step 3: Cross multiply
    42,498.36x = 63,747.02 × 19,108.28
  4. Step 4: Simplify right side
    42,498.36x = 1,218,095,907.33
  5. Step 5: Solve for x
    x = 1,218,095,907.33/42,498.36
  6. Step 6: Final answer
    x = 28,662.19

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1.5x scale

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.