Home / 20,295.47-28,008.86-11,342.99

Finding the Fourth Proportional to 20,295.47, 28,008.86 and 11,342.99

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Solution

The fourth proportional to 20,295.47, 28,008.86 and 11,342.99 is: 15,653.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.47 : 28,008.86 = 11,342.99 : x
  2. Step 2: Convert to fraction form
    20,295.47/28,008.86 = 11,342.99/x
  3. Step 3: Cross multiply
    20,295.47x = 28,008.86 × 11,342.99
  4. Step 4: Simplify right side
    20,295.47x = 317,704,162.18
  5. Step 5: Solve for x
    x = 317,704,162.18/20,295.47
  6. Step 6: Final answer
    x = 15,653.94

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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.