Home / 28,580.70-39,441.53-15,834.28

Finding the Fourth Proportional to 28,580.70, 39,441.53 and 15,834.28

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Solution

The fourth proportional to 28,580.70, 39,441.53 and 15,834.28 is: 21,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.70 : 39,441.53 = 15,834.28 : x
  2. Step 2: Convert to fraction form
    28,580.70/39,441.53 = 15,834.28/x
  3. Step 3: Cross multiply
    28,580.70x = 39,441.53 × 15,834.28
  4. Step 4: Simplify right side
    28,580.70x = 624,528,229.65
  5. Step 5: Solve for x
    x = 624,528,229.65/28,580.70
  6. Step 6: Final answer
    x = 21,851.40

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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.