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Finding the Fourth Proportional to 25,237.60, 37,894.80 and 19,400.80

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Solution

The fourth proportional to 25,237.60, 37,894.80 and 19,400.80 is: 29,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,237.60 : 37,894.80 = 19,400.80 : x
  2. Step 2: Convert to fraction form
    25,237.60/37,894.80 = 19,400.80/x
  3. Step 3: Cross multiply
    25,237.60x = 37,894.80 × 19,400.80
  4. Step 4: Simplify right side
    25,237.60x = 735,189,435.84
  5. Step 5: Solve for x
    x = 735,189,435.84/25,237.60
  6. Step 6: Final answer
    x = 29,130.72

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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.