Home / 21,585.96-32,359.74-8,435.34

Finding the Fourth Proportional to 21,585.96, 32,359.74 and 8,435.34

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Solution

The fourth proportional to 21,585.96, 32,359.74 and 8,435.34 is: 12,645.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.96 : 32,359.74 = 8,435.34 : x
  2. Step 2: Convert to fraction form
    21,585.96/32,359.74 = 8,435.34/x
  3. Step 3: Cross multiply
    21,585.96x = 32,359.74 × 8,435.34
  4. Step 4: Simplify right side
    21,585.96x = 272,965,409.21
  5. Step 5: Solve for x
    x = 272,965,409.21/21,585.96
  6. Step 6: Final answer
    x = 12,645.51

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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.