Home / 21,529.64-32,283.52-10,988.32

Finding the Fourth Proportional to 21,529.64, 32,283.52 and 10,988.32

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Solution

The fourth proportional to 21,529.64, 32,283.52 and 10,988.32 is: 16,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,529.64 : 32,283.52 = 10,988.32 : x
  2. Step 2: Convert to fraction form
    21,529.64/32,283.52 = 10,988.32/x
  3. Step 3: Cross multiply
    21,529.64x = 32,283.52 × 10,988.32
  4. Step 4: Simplify right side
    21,529.64x = 354,741,648.49
  5. Step 5: Solve for x
    x = 354,741,648.49/21,529.64
  6. Step 6: Final answer
    x = 16,476.90

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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.