Home / 21,441.60-29,592.36-12,491.91

Finding the Fourth Proportional to 21,441.60, 29,592.36 and 12,491.91

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Solution

The fourth proportional to 21,441.60, 29,592.36 and 12,491.91 is: 17,240.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,441.60 : 29,592.36 = 12,491.91 : x
  2. Step 2: Convert to fraction form
    21,441.60/29,592.36 = 12,491.91/x
  3. Step 3: Cross multiply
    21,441.60x = 29,592.36 × 12,491.91
  4. Step 4: Simplify right side
    21,441.60x = 369,665,097.81
  5. Step 5: Solve for x
    x = 369,665,097.81/21,441.60
  6. Step 6: Final answer
    x = 17,240.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.