Home / 25,172.60-37,748.10-12,687.80

Finding the Fourth Proportional to 25,172.60, 37,748.10 and 12,687.80

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Solution

The fourth proportional to 25,172.60, 37,748.10 and 12,687.80 is: 19,026.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,172.60 : 37,748.10 = 12,687.80 : x
  2. Step 2: Convert to fraction form
    25,172.60/37,748.10 = 12,687.80/x
  3. Step 3: Cross multiply
    25,172.60x = 37,748.10 × 12,687.80
  4. Step 4: Simplify right side
    25,172.60x = 478,940,343.18
  5. Step 5: Solve for x
    x = 478,940,343.18/25,172.60
  6. Step 6: Final answer
    x = 19,026.26

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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.