Home / 21,661.64-32,495.56-6,670.03

Finding the Fourth Proportional to 21,661.64, 32,495.56 and 6,670.03

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Solution

The fourth proportional to 21,661.64, 32,495.56 and 6,670.03 is: 10,005.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,661.64 : 32,495.56 = 6,670.03 : x
  2. Step 2: Convert to fraction form
    21,661.64/32,495.56 = 6,670.03/x
  3. Step 3: Cross multiply
    21,661.64x = 32,495.56 × 6,670.03
  4. Step 4: Simplify right side
    21,661.64x = 216,746,164.24
  5. Step 5: Solve for x
    x = 216,746,164.24/21,661.64
  6. Step 6: Final answer
    x = 10,005.99

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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.