Home / 21,603.74-32,406.30-6,812.79

Finding the Fourth Proportional to 21,603.74, 32,406.30 and 6,812.79

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Solution

The fourth proportional to 21,603.74, 32,406.30 and 6,812.79 is: 10,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603.74 : 32,406.30 = 6,812.79 : x
  2. Step 2: Convert to fraction form
    21,603.74/32,406.30 = 6,812.79/x
  3. Step 3: Cross multiply
    21,603.74x = 32,406.30 × 6,812.79
  4. Step 4: Simplify right side
    21,603.74x = 220,777,316.58
  5. Step 5: Solve for x
    x = 220,777,316.58/21,603.74
  6. Step 6: Final answer
    x = 10,219.40

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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.