Home / 21,687.56-32,479.26-11,802.28

Finding the Fourth Proportional to 21,687.56, 32,479.26 and 11,802.28

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Solution

The fourth proportional to 21,687.56, 32,479.26 and 11,802.28 is: 17,675.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687.56 : 32,479.26 = 11,802.28 : x
  2. Step 2: Convert to fraction form
    21,687.56/32,479.26 = 11,802.28/x
  3. Step 3: Cross multiply
    21,687.56x = 32,479.26 × 11,802.28
  4. Step 4: Simplify right side
    21,687.56x = 383,329,320.71
  5. Step 5: Solve for x
    x = 383,329,320.71/21,687.56
  6. Step 6: Final answer
    x = 17,675.08

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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.