Home / 25,269.80-37,904.70-12,115.40

Finding the Fourth Proportional to 25,269.80, 37,904.70 and 12,115.40

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Solution

The fourth proportional to 25,269.80, 37,904.70 and 12,115.40 is: 18,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,269.80 : 37,904.70 = 12,115.40 : x
  2. Step 2: Convert to fraction form
    25,269.80/37,904.70 = 12,115.40/x
  3. Step 3: Cross multiply
    25,269.80x = 37,904.70 × 12,115.40
  4. Step 4: Simplify right side
    25,269.80x = 459,230,602.38
  5. Step 5: Solve for x
    x = 459,230,602.38/25,269.80
  6. Step 6: Final answer
    x = 18,173.10

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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.