Home / 20,295.69-27,989.86-16,903.96

Finding the Fourth Proportional to 20,295.69, 27,989.86 and 16,903.96

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Solution

The fourth proportional to 20,295.69, 27,989.86 and 16,903.96 is: 23,312.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.69 : 27,989.86 = 16,903.96 : x
  2. Step 2: Convert to fraction form
    20,295.69/27,989.86 = 16,903.96/x
  3. Step 3: Cross multiply
    20,295.69x = 27,989.86 × 16,903.96
  4. Step 4: Simplify right side
    20,295.69x = 473,139,536.55
  5. Step 5: Solve for x
    x = 473,139,536.55/20,295.69
  6. Step 6: Final answer
    x = 23,312.31

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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.