Home / 28,578.96-39,352.05-25,345.80

Finding the Fourth Proportional to 28,578.96, 39,352.05 and 25,345.80

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Solution

The fourth proportional to 28,578.96, 39,352.05 and 25,345.80 is: 34,900.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578.96 : 39,352.05 = 25,345.80 : x
  2. Step 2: Convert to fraction form
    28,578.96/39,352.05 = 25,345.80/x
  3. Step 3: Cross multiply
    28,578.96x = 39,352.05 × 25,345.80
  4. Step 4: Simplify right side
    28,578.96x = 997,409,188.89
  5. Step 5: Solve for x
    x = 997,409,188.89/28,578.96
  6. Step 6: Final answer
    x = 34,900.12

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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.