Home / 15,861.40-23,849.70-15,515.80

Finding the Fourth Proportional to 15,861.40, 23,849.70 and 15,515.80

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Solution

The fourth proportional to 15,861.40, 23,849.70 and 15,515.80 is: 23,330.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,861.40 : 23,849.70 = 15,515.80 : x
  2. Step 2: Convert to fraction form
    15,861.40/23,849.70 = 15,515.80/x
  3. Step 3: Cross multiply
    15,861.40x = 23,849.70 × 15,515.80
  4. Step 4: Simplify right side
    15,861.40x = 370,047,175.26
  5. Step 5: Solve for x
    x = 370,047,175.26/15,861.40
  6. Step 6: Final answer
    x = 23,330.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.