Home / 25,640.10-38,484.72-12,501.66

Finding the Fourth Proportional to 25,640.10, 38,484.72 and 12,501.66

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Solution

The fourth proportional to 25,640.10, 38,484.72 and 12,501.66 is: 18,764.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,640.10 : 38,484.72 = 12,501.66 : x
  2. Step 2: Convert to fraction form
    25,640.10/38,484.72 = 12,501.66/x
  3. Step 3: Cross multiply
    25,640.10x = 38,484.72 × 12,501.66
  4. Step 4: Simplify right side
    25,640.10x = 481,122,884.64
  5. Step 5: Solve for x
    x = 481,122,884.64/25,640.10
  6. Step 6: Final answer
    x = 18,764.47

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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.