Home / 21,610.90-32,419.54-6,816.45

Finding the Fourth Proportional to 21,610.90, 32,419.54 and 6,816.45

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Solution

The fourth proportional to 21,610.90, 32,419.54 and 6,816.45 is: 10,225.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,610.90 : 32,419.54 = 6,816.45 : x
  2. Step 2: Convert to fraction form
    21,610.90/32,419.54 = 6,816.45/x
  3. Step 3: Cross multiply
    21,610.90x = 32,419.54 × 6,816.45
  4. Step 4: Simplify right side
    21,610.90x = 220,986,303.53
  5. Step 5: Solve for x
    x = 220,986,303.53/21,610.90
  6. Step 6: Final answer
    x = 10,225.69

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1.5x scale

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.