Home / 28,898.75-39,880.32-15,650.75

Finding the Fourth Proportional to 28,898.75, 39,880.32 and 15,650.75

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Solution

The fourth proportional to 28,898.75, 39,880.32 and 15,650.75 is: 21,598.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,898.75 : 39,880.32 = 15,650.75 : x
  2. Step 2: Convert to fraction form
    28,898.75/39,880.32 = 15,650.75/x
  3. Step 3: Cross multiply
    28,898.75x = 39,880.32 × 15,650.75
  4. Step 4: Simplify right side
    28,898.75x = 624,156,918.24
  5. Step 5: Solve for x
    x = 624,156,918.24/28,898.75
  6. Step 6: Final answer
    x = 21,598.06

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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.