Home / 21,750.55-32,638.37-11,755.32

Finding the Fourth Proportional to 21,750.55, 32,638.37 and 11,755.32

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Solution

The fourth proportional to 21,750.55, 32,638.37 and 11,755.32 is: 17,639.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,750.55 : 32,638.37 = 11,755.32 : x
  2. Step 2: Convert to fraction form
    21,750.55/32,638.37 = 11,755.32/x
  3. Step 3: Cross multiply
    21,750.55x = 32,638.37 × 11,755.32
  4. Step 4: Simplify right side
    21,750.55x = 383,674,483.63
  5. Step 5: Solve for x
    x = 383,674,483.63/21,750.55
  6. Step 6: Final answer
    x = 17,639.76

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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.