Home / 42,788.32-64,182.48-11,623.52

Finding the Fourth Proportional to 42,788.32, 64,182.48 and 11,623.52

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Solution

The fourth proportional to 42,788.32, 64,182.48 and 11,623.52 is: 17,435.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,788.32 : 64,182.48 = 11,623.52 : x
  2. Step 2: Convert to fraction form
    42,788.32/64,182.48 = 11,623.52/x
  3. Step 3: Cross multiply
    42,788.32x = 64,182.48 × 11,623.52
  4. Step 4: Simplify right side
    42,788.32x = 746,026,339.93
  5. Step 5: Solve for x
    x = 746,026,339.93/42,788.32
  6. Step 6: Final answer
    x = 17,435.28

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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.