Home / 27,688.60-41,487.30-15,981.40

Finding the Fourth Proportional to 27,688.60, 41,487.30 and 15,981.40

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Solution

The fourth proportional to 27,688.60, 41,487.30 and 15,981.40 is: 23,945.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,688.60 : 41,487.30 = 15,981.40 : x
  2. Step 2: Convert to fraction form
    27,688.60/41,487.30 = 15,981.40/x
  3. Step 3: Cross multiply
    27,688.60x = 41,487.30 × 15,981.40
  4. Step 4: Simplify right side
    27,688.60x = 663,025,136.22
  5. Step 5: Solve for x
    x = 663,025,136.22/27,688.60
  6. Step 6: Final answer
    x = 23,945.78

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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.