Home / 21,516.12-32,278.77-7,476.57

Finding the Fourth Proportional to 21,516.12, 32,278.77 and 7,476.57

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Solution

The fourth proportional to 21,516.12, 32,278.77 and 7,476.57 is: 11,216.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516.12 : 32,278.77 = 7,476.57 : x
  2. Step 2: Convert to fraction form
    21,516.12/32,278.77 = 7,476.57/x
  3. Step 3: Cross multiply
    21,516.12x = 32,278.77 × 7,476.57
  4. Step 4: Simplify right side
    21,516.12x = 241,334,483.42
  5. Step 5: Solve for x
    x = 241,334,483.42/21,516.12
  6. Step 6: Final answer
    x = 11,216.45

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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.