Home / 42,640.34-63,963.57-13,054.32

Finding the Fourth Proportional to 42,640.34, 63,963.57 and 13,054.32

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Solution

The fourth proportional to 42,640.34, 63,963.57 and 13,054.32 is: 19,582.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,640.34 : 63,963.57 = 13,054.32 : x
  2. Step 2: Convert to fraction form
    42,640.34/63,963.57 = 13,054.32/x
  3. Step 3: Cross multiply
    42,640.34x = 63,963.57 × 13,054.32
  4. Step 4: Simplify right side
    42,640.34x = 835,000,911.12
  5. Step 5: Solve for x
    x = 835,000,911.12/42,640.34
  6. Step 6: Final answer
    x = 19,582.42

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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.