Home / 21,552.58-29,746.66-13,489.98

Finding the Fourth Proportional to 21,552.58, 29,746.66 and 13,489.98

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Solution

The fourth proportional to 21,552.58, 29,746.66 and 13,489.98 is: 18,618.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,552.58 : 29,746.66 = 13,489.98 : x
  2. Step 2: Convert to fraction form
    21,552.58/29,746.66 = 13,489.98/x
  3. Step 3: Cross multiply
    21,552.58x = 29,746.66 × 13,489.98
  4. Step 4: Simplify right side
    21,552.58x = 401,281,848.47
  5. Step 5: Solve for x
    x = 401,281,848.47/21,552.58
  6. Step 6: Final answer
    x = 18,618.74

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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.