Home / 21,427.32-32,132.70-8,953.23

Finding the Fourth Proportional to 21,427.32, 32,132.70 and 8,953.23

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Solution

The fourth proportional to 21,427.32, 32,132.70 and 8,953.23 is: 13,426.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.32 : 32,132.70 = 8,953.23 : x
  2. Step 2: Convert to fraction form
    21,427.32/32,132.70 = 8,953.23/x
  3. Step 3: Cross multiply
    21,427.32x = 32,132.70 × 8,953.23
  4. Step 4: Simplify right side
    21,427.32x = 287,691,453.62
  5. Step 5: Solve for x
    x = 287,691,453.62/21,427.32
  6. Step 6: Final answer
    x = 13,426.39

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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.