Home / 21,385.64-29,509.61-11,824.24

Finding the Fourth Proportional to 21,385.64, 29,509.61 and 11,824.24

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Solution

The fourth proportional to 21,385.64, 29,509.61 and 11,824.24 is: 16,316.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385.64 : 29,509.61 = 11,824.24 : x
  2. Step 2: Convert to fraction form
    21,385.64/29,509.61 = 11,824.24/x
  3. Step 3: Cross multiply
    21,385.64x = 29,509.61 × 11,824.24
  4. Step 4: Simplify right side
    21,385.64x = 348,928,563.40
  5. Step 5: Solve for x
    x = 348,928,563.40/21,385.64
  6. Step 6: Final answer
    x = 16,316.02

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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.