Home / 28,847.72-39,780.68-19,287.50

Finding the Fourth Proportional to 28,847.72, 39,780.68 and 19,287.50

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Solution

The fourth proportional to 28,847.72, 39,780.68 and 19,287.50 is: 26,597.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,847.72 : 39,780.68 = 19,287.50 : x
  2. Step 2: Convert to fraction form
    28,847.72/39,780.68 = 19,287.50/x
  3. Step 3: Cross multiply
    28,847.72x = 39,780.68 × 19,287.50
  4. Step 4: Simplify right side
    28,847.72x = 767,269,570.16
  5. Step 5: Solve for x
    x = 767,269,570.16/28,847.72
  6. Step 6: Final answer
    x = 26,597.23

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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.