Home / 20,710.87-28,584.02-11,756.52

Finding the Fourth Proportional to 20,710.87, 28,584.02 and 11,756.52

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Solution

The fourth proportional to 20,710.87, 28,584.02 and 11,756.52 is: 16,225.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.87 : 28,584.02 = 11,756.52 : x
  2. Step 2: Convert to fraction form
    20,710.87/28,584.02 = 11,756.52/x
  3. Step 3: Cross multiply
    20,710.87x = 28,584.02 × 11,756.52
  4. Step 4: Simplify right side
    20,710.87x = 336,048,602.81
  5. Step 5: Solve for x
    x = 336,048,602.81/20,710.87
  6. Step 6: Final answer
    x = 16,225.71

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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.