Home / 20,650.52-28,510.99-14,200.90

Finding the Fourth Proportional to 20,650.52, 28,510.99 and 14,200.90

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Solution

The fourth proportional to 20,650.52, 28,510.99 and 14,200.90 is: 19,606.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.52 : 28,510.99 = 14,200.90 : x
  2. Step 2: Convert to fraction form
    20,650.52/28,510.99 = 14,200.90/x
  3. Step 3: Cross multiply
    20,650.52x = 28,510.99 × 14,200.90
  4. Step 4: Simplify right side
    20,650.52x = 404,881,611.11
  5. Step 5: Solve for x
    x = 404,881,611.11/20,650.52
  6. Step 6: Final answer
    x = 19,606.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.