Home / 21,658.88-32,501.28-19,896.32

Finding the Fourth Proportional to 21,658.88, 32,501.28 and 19,896.32

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Solution

The fourth proportional to 21,658.88, 32,501.28 and 19,896.32 is: 29,856.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,658.88 : 32,501.28 = 19,896.32 : x
  2. Step 2: Convert to fraction form
    21,658.88/32,501.28 = 19,896.32/x
  3. Step 3: Cross multiply
    21,658.88x = 32,501.28 × 19,896.32
  4. Step 4: Simplify right side
    21,658.88x = 646,655,867.29
  5. Step 5: Solve for x
    x = 646,655,867.29/21,658.88
  6. Step 6: Final answer
    x = 29,856.39

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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.