Home / 25,132.72-34,683.36-15,706.80

Finding the Fourth Proportional to 25,132.72, 34,683.36 and 15,706.80

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Solution

The fourth proportional to 25,132.72, 34,683.36 and 15,706.80 is: 21,675.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,132.72 : 34,683.36 = 15,706.80 : x
  2. Step 2: Convert to fraction form
    25,132.72/34,683.36 = 15,706.80/x
  3. Step 3: Cross multiply
    25,132.72x = 34,683.36 × 15,706.80
  4. Step 4: Simplify right side
    25,132.72x = 544,764,598.85
  5. Step 5: Solve for x
    x = 544,764,598.85/25,132.72
  6. Step 6: Final answer
    x = 21,675.51

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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.