Home / 27,511.36-41,267.08-9,981.20

Finding the Fourth Proportional to 27,511.36, 41,267.08 and 9,981.20

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Solution

The fourth proportional to 27,511.36, 41,267.08 and 9,981.20 is: 14,971.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,511.36 : 41,267.08 = 9,981.20 : x
  2. Step 2: Convert to fraction form
    27,511.36/41,267.08 = 9,981.20/x
  3. Step 3: Cross multiply
    27,511.36x = 41,267.08 × 9,981.20
  4. Step 4: Simplify right side
    27,511.36x = 411,894,978.90
  5. Step 5: Solve for x
    x = 411,894,978.90/27,511.36
  6. Step 6: Final answer
    x = 14,971.81

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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.