Home / 40,775.21-61,188.80-18,590.80

Finding the Fourth Proportional to 40,775.21, 61,188.80 and 18,590.80

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Solution

The fourth proportional to 40,775.21, 61,188.80 and 18,590.80 is: 27,898.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,775.21 : 61,188.80 = 18,590.80 : x
  2. Step 2: Convert to fraction form
    40,775.21/61,188.80 = 18,590.80/x
  3. Step 3: Cross multiply
    40,775.21x = 61,188.80 × 18,590.80
  4. Step 4: Simplify right side
    40,775.21x = 1,137,548,743.04
  5. Step 5: Solve for x
    x = 1,137,548,743.04/40,775.21
  6. Step 6: Final answer
    x = 27,898.05

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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.