Home / 28,571.60-39,433.48-17,085.76

Finding the Fourth Proportional to 28,571.60, 39,433.48 and 17,085.76

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Solution

The fourth proportional to 28,571.60, 39,433.48 and 17,085.76 is: 23,581.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.60 : 39,433.48 = 17,085.76 : x
  2. Step 2: Convert to fraction form
    28,571.60/39,433.48 = 17,085.76/x
  3. Step 3: Cross multiply
    28,571.60x = 39,433.48 × 17,085.76
  4. Step 4: Simplify right side
    28,571.60x = 673,750,975.24
  5. Step 5: Solve for x
    x = 673,750,975.24/28,571.60
  6. Step 6: Final answer
    x = 23,581.14

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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.