Home / 21,585.94-32,359.70-8,435.32

Finding the Fourth Proportional to 21,585.94, 32,359.70 and 8,435.32

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Solution

The fourth proportional to 21,585.94, 32,359.70 and 8,435.32 is: 12,645.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.94 : 32,359.70 = 8,435.32 : x
  2. Step 2: Convert to fraction form
    21,585.94/32,359.70 = 8,435.32/x
  3. Step 3: Cross multiply
    21,585.94x = 32,359.70 × 8,435.32
  4. Step 4: Simplify right side
    21,585.94x = 272,964,424.60
  5. Step 5: Solve for x
    x = 272,964,424.60/21,585.94
  6. Step 6: Final answer
    x = 12,645.47

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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.