Home / 21,416.67-29,539.76-13,033.71

Finding the Fourth Proportional to 21,416.67, 29,539.76 and 13,033.71

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Solution

The fourth proportional to 21,416.67, 29,539.76 and 13,033.71 is: 17,977.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.67 : 29,539.76 = 13,033.71 : x
  2. Step 2: Convert to fraction form
    21,416.67/29,539.76 = 13,033.71/x
  3. Step 3: Cross multiply
    21,416.67x = 29,539.76 × 13,033.71
  4. Step 4: Simplify right side
    21,416.67x = 385,012,600.14
  5. Step 5: Solve for x
    x = 385,012,600.14/21,416.67
  6. Step 6: Final answer
    x = 17,977.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.