Home / 25,903.60-38,812.20-12,727.60

Finding the Fourth Proportional to 25,903.60, 38,812.20 and 12,727.60

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Solution

The fourth proportional to 25,903.60, 38,812.20 and 12,727.60 is: 19,070.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,903.60 : 38,812.20 = 12,727.60 : x
  2. Step 2: Convert to fraction form
    25,903.60/38,812.20 = 12,727.60/x
  3. Step 3: Cross multiply
    25,903.60x = 38,812.20 × 12,727.60
  4. Step 4: Simplify right side
    25,903.60x = 493,986,156.72
  5. Step 5: Solve for x
    x = 493,986,156.72/25,903.60
  6. Step 6: Final answer
    x = 19,070.17

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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.