Home / 19,425.69-29,138.54-8,325.18

Finding the Fourth Proportional to 19,425.69, 29,138.54 and 8,325.18

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Solution

The fourth proportional to 19,425.69, 29,138.54 and 8,325.18 is: 12,487.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,425.69 : 29,138.54 = 8,325.18 : x
  2. Step 2: Convert to fraction form
    19,425.69/29,138.54 = 8,325.18/x
  3. Step 3: Cross multiply
    19,425.69x = 29,138.54 × 8,325.18
  4. Step 4: Simplify right side
    19,425.69x = 242,583,548.81
  5. Step 5: Solve for x
    x = 242,583,548.81/19,425.69
  6. Step 6: Final answer
    x = 12,487.77

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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.