Home / 20,302.34-28,017.86-11,350.22

Finding the Fourth Proportional to 20,302.34, 28,017.86 and 11,350.22

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Solution

The fourth proportional to 20,302.34, 28,017.86 and 11,350.22 is: 15,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.34 : 28,017.86 = 11,350.22 : x
  2. Step 2: Convert to fraction form
    20,302.34/28,017.86 = 11,350.22/x
  3. Step 3: Cross multiply
    20,302.34x = 28,017.86 × 11,350.22
  4. Step 4: Simplify right side
    20,302.34x = 318,008,678.09
  5. Step 5: Solve for x
    x = 318,008,678.09/20,302.34
  6. Step 6: Final answer
    x = 15,663.65

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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.