Home / 20,590.89-28,430.08-16,277.54

Finding the Fourth Proportional to 20,590.89, 28,430.08 and 16,277.54

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Solution

The fourth proportional to 20,590.89, 28,430.08 and 16,277.54 is: 22,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.89 : 28,430.08 = 16,277.54 : x
  2. Step 2: Convert to fraction form
    20,590.89/28,430.08 = 16,277.54/x
  3. Step 3: Cross multiply
    20,590.89x = 28,430.08 × 16,277.54
  4. Step 4: Simplify right side
    20,590.89x = 462,771,581.56
  5. Step 5: Solve for x
    x = 462,771,581.56/20,590.89
  6. Step 6: Final answer
    x = 22,474.58

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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.