Home / 19,281.60-28,909.44-7,588.80

Finding the Fourth Proportional to 19,281.60, 28,909.44 and 7,588.80

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Solution

The fourth proportional to 19,281.60, 28,909.44 and 7,588.80 is: 11,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,281.60 : 28,909.44 = 7,588.80 : x
  2. Step 2: Convert to fraction form
    19,281.60/28,909.44 = 7,588.80/x
  3. Step 3: Cross multiply
    19,281.60x = 28,909.44 × 7,588.80
  4. Step 4: Simplify right side
    19,281.60x = 219,387,958.27
  5. Step 5: Solve for x
    x = 219,387,958.27/19,281.60
  6. Step 6: Final answer
    x = 11,378.10

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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.