Home / 26,490.40-39,703.20-11,683.60

Finding the Fourth Proportional to 26,490.40, 39,703.20 and 11,683.60

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Solution

The fourth proportional to 26,490.40, 39,703.20 and 11,683.60 is: 17,511.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,490.40 : 39,703.20 = 11,683.60 : x
  2. Step 2: Convert to fraction form
    26,490.40/39,703.20 = 11,683.60/x
  3. Step 3: Cross multiply
    26,490.40x = 39,703.20 × 11,683.60
  4. Step 4: Simplify right side
    26,490.40x = 463,876,307.52
  5. Step 5: Solve for x
    x = 463,876,307.52/26,490.40
  6. Step 6: Final answer
    x = 17,511.11

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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.