Home / 28,459.42-39,273.99-15,712.60

Finding the Fourth Proportional to 28,459.42, 39,273.99 and 15,712.60

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Solution

The fourth proportional to 28,459.42, 39,273.99 and 15,712.60 is: 21,683.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459.42 : 39,273.99 = 15,712.60 : x
  2. Step 2: Convert to fraction form
    28,459.42/39,273.99 = 15,712.60/x
  3. Step 3: Cross multiply
    28,459.42x = 39,273.99 × 15,712.60
  4. Step 4: Simplify right side
    28,459.42x = 617,096,495.27
  5. Step 5: Solve for x
    x = 617,096,495.27/28,459.42
  6. Step 6: Final answer
    x = 21,683.38

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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.