Home / 25,410.15-38,150.14-12,938.56

Finding the Fourth Proportional to 25,410.15, 38,150.14 and 12,938.56

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Solution

The fourth proportional to 25,410.15, 38,150.14 and 12,938.56 is: 19,425.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,410.15 : 38,150.14 = 12,938.56 : x
  2. Step 2: Convert to fraction form
    25,410.15/38,150.14 = 12,938.56/x
  3. Step 3: Cross multiply
    25,410.15x = 38,150.14 × 12,938.56
  4. Step 4: Simplify right side
    25,410.15x = 493,607,875.40
  5. Step 5: Solve for x
    x = 493,607,875.40/25,410.15
  6. Step 6: Final answer
    x = 19,425.62

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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.