Home / 28,557.48-42,835.90-15,915.24

Finding the Fourth Proportional to 28,557.48, 42,835.90 and 15,915.24

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Solution

The fourth proportional to 28,557.48, 42,835.90 and 15,915.24 is: 23,872.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557.48 : 42,835.90 = 15,915.24 : x
  2. Step 2: Convert to fraction form
    28,557.48/42,835.90 = 15,915.24/x
  3. Step 3: Cross multiply
    28,557.48x = 42,835.90 × 15,915.24
  4. Step 4: Simplify right side
    28,557.48x = 681,743,629.12
  5. Step 5: Solve for x
    x = 681,743,629.12/28,557.48
  6. Step 6: Final answer
    x = 23,872.68

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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.