Home / 25,277.20-37,915.80-12,835.60

Finding the Fourth Proportional to 25,277.20, 37,915.80 and 12,835.60

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Solution

The fourth proportional to 25,277.20, 37,915.80 and 12,835.60 is: 19,253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,277.20 : 37,915.80 = 12,835.60 : x
  2. Step 2: Convert to fraction form
    25,277.20/37,915.80 = 12,835.60/x
  3. Step 3: Cross multiply
    25,277.20x = 37,915.80 × 12,835.60
  4. Step 4: Simplify right side
    25,277.20x = 486,672,042.48
  5. Step 5: Solve for x
    x = 486,672,042.48/25,277.20
  6. Step 6: Final answer
    x = 19,253.40

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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.