Home / 21,586.20-32,376.52-9,111.16

Finding the Fourth Proportional to 21,586.20, 32,376.52 and 9,111.16

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Solution

The fourth proportional to 21,586.20, 32,376.52 and 9,111.16 is: 13,665.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,586.20 : 32,376.52 = 9,111.16 : x
  2. Step 2: Convert to fraction form
    21,586.20/32,376.52 = 9,111.16/x
  3. Step 3: Cross multiply
    21,586.20x = 32,376.52 × 9,111.16
  4. Step 4: Simplify right side
    21,586.20x = 294,987,653.96
  5. Step 5: Solve for x
    x = 294,987,653.96/21,586.20
  6. Step 6: Final answer
    x = 13,665.57

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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.