Home / 21,715.17-32,572.76-19,243.86

Finding the Fourth Proportional to 21,715.17, 32,572.76 and 19,243.86

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Solution

The fourth proportional to 21,715.17, 32,572.76 and 19,243.86 is: 28,865.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715.17 : 32,572.76 = 19,243.86 : x
  2. Step 2: Convert to fraction form
    21,715.17/32,572.76 = 19,243.86/x
  3. Step 3: Cross multiply
    21,715.17x = 32,572.76 × 19,243.86
  4. Step 4: Simplify right side
    21,715.17x = 626,825,537.03
  5. Step 5: Solve for x
    x = 626,825,537.03/21,715.17
  6. Step 6: Final answer
    x = 28,865.79

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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.