Home / 53,238.87-79,858.31-13,792.68

Finding the Fourth Proportional to 53,238.87, 79,858.31 and 13,792.68

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Solution

The fourth proportional to 53,238.87, 79,858.31 and 13,792.68 is: 20,689.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,238.87 : 79,858.31 = 13,792.68 : x
  2. Step 2: Convert to fraction form
    53,238.87/79,858.31 = 13,792.68/x
  3. Step 3: Cross multiply
    53,238.87x = 79,858.31 × 13,792.68
  4. Step 4: Simplify right side
    53,238.87x = 1,101,460,046.21
  5. Step 5: Solve for x
    x = 1,101,460,046.21/53,238.87
  6. Step 6: Final answer
    x = 20,689.02

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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.