Home / 21,476.08-32,215.20-7,436.80

Finding the Fourth Proportional to 21,476.08, 32,215.20 and 7,436.80

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Solution

The fourth proportional to 21,476.08, 32,215.20 and 7,436.80 is: 11,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476.08 : 32,215.20 = 7,436.80 : x
  2. Step 2: Convert to fraction form
    21,476.08/32,215.20 = 7,436.80/x
  3. Step 3: Cross multiply
    21,476.08x = 32,215.20 × 7,436.80
  4. Step 4: Simplify right side
    21,476.08x = 239,577,999.36
  5. Step 5: Solve for x
    x = 239,577,999.36/21,476.08
  6. Step 6: Final answer
    x = 11,155.57

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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.