Home / 28,452.92-39,265.02-15,877.64

Finding the Fourth Proportional to 28,452.92, 39,265.02 and 15,877.64

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Solution

The fourth proportional to 28,452.92, 39,265.02 and 15,877.64 is: 21,911.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.92 : 39,265.02 = 15,877.64 : x
  2. Step 2: Convert to fraction form
    28,452.92/39,265.02 = 15,877.64/x
  3. Step 3: Cross multiply
    28,452.92x = 39,265.02 × 15,877.64
  4. Step 4: Simplify right side
    28,452.92x = 623,435,852.15
  5. Step 5: Solve for x
    x = 623,435,852.15/28,452.92
  6. Step 6: Final answer
    x = 21,911.14

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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.