Home / 21,623.76-29,824.00-13,663.08

Finding the Fourth Proportional to 21,623.76, 29,824.00 and 13,663.08

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Solution

The fourth proportional to 21,623.76, 29,824.00 and 13,663.08 is: 18,844.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.76 : 29,824.00 = 13,663.08 : x
  2. Step 2: Convert to fraction form
    21,623.76/29,824.00 = 13,663.08/x
  3. Step 3: Cross multiply
    21,623.76x = 29,824.00 × 13,663.08
  4. Step 4: Simplify right side
    21,623.76x = 407,487,663.76
  5. Step 5: Solve for x
    x = 407,487,663.76/21,623.76
  6. Step 6: Final answer
    x = 18,844.44

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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.