Home / 20,958.34-28,922.52-11,526.90

Finding the Fourth Proportional to 20,958.34, 28,922.52 and 11,526.90

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Solution

The fourth proportional to 20,958.34, 28,922.52 and 11,526.90 is: 15,907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958.34 : 28,922.52 = 11,526.90 : x
  2. Step 2: Convert to fraction form
    20,958.34/28,922.52 = 11,526.90/x
  3. Step 3: Cross multiply
    20,958.34x = 28,922.52 × 11,526.90
  4. Step 4: Simplify right side
    20,958.34x = 333,386,938.15
  5. Step 5: Solve for x
    x = 333,386,938.15/20,958.34
  6. Step 6: Final answer
    x = 15,907.13

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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.