Home / 21,965.85-32,948.81-5,325.86

Finding the Fourth Proportional to 21,965.85, 32,948.81 and 5,325.86

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Solution

The fourth proportional to 21,965.85, 32,948.81 and 5,325.86 is: 7,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.85 : 32,948.81 = 5,325.86 : x
  2. Step 2: Convert to fraction form
    21,965.85/32,948.81 = 5,325.86/x
  3. Step 3: Cross multiply
    21,965.85x = 32,948.81 × 5,325.86
  4. Step 4: Simplify right side
    21,965.85x = 175,480,651.54
  5. Step 5: Solve for x
    x = 175,480,651.54/21,965.85
  6. Step 6: Final answer
    x = 7,988.79

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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.