Home / 21,729.45-32,595.10-7,689.59

Finding the Fourth Proportional to 21,729.45, 32,595.10 and 7,689.59

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Solution

The fourth proportional to 21,729.45, 32,595.10 and 7,689.59 is: 11,534.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,729.45 : 32,595.10 = 7,689.59 : x
  2. Step 2: Convert to fraction form
    21,729.45/32,595.10 = 7,689.59/x
  3. Step 3: Cross multiply
    21,729.45x = 32,595.10 × 7,689.59
  4. Step 4: Simplify right side
    21,729.45x = 250,642,955.01
  5. Step 5: Solve for x
    x = 250,642,955.01/21,729.45
  6. Step 6: Final answer
    x = 11,534.71

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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.