Home / 21,468.82-29,599.59-13,901.80

Finding the Fourth Proportional to 21,468.82, 29,599.59 and 13,901.80

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Solution

The fourth proportional to 21,468.82, 29,599.59 and 13,901.80 is: 19,166.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,468.82 : 29,599.59 = 13,901.80 : x
  2. Step 2: Convert to fraction form
    21,468.82/29,599.59 = 13,901.80/x
  3. Step 3: Cross multiply
    21,468.82x = 29,599.59 × 13,901.80
  4. Step 4: Simplify right side
    21,468.82x = 411,487,580.26
  5. Step 5: Solve for x
    x = 411,487,580.26/21,468.82
  6. Step 6: Final answer
    x = 19,166.75

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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.