Home / 28,390.56-42,590.97-11,741.55

Finding the Fourth Proportional to 28,390.56, 42,590.97 and 11,741.55

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Solution

The fourth proportional to 28,390.56, 42,590.97 and 11,741.55 is: 17,614.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,390.56 : 42,590.97 = 11,741.55 : x
  2. Step 2: Convert to fraction form
    28,390.56/42,590.97 = 11,741.55/x
  3. Step 3: Cross multiply
    28,390.56x = 42,590.97 × 11,741.55
  4. Step 4: Simplify right side
    28,390.56x = 500,084,003.80
  5. Step 5: Solve for x
    x = 500,084,003.80/28,390.56
  6. Step 6: Final answer
    x = 17,614.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.