Home / 27,400.18-37,812.85-15,135.56

Finding the Fourth Proportional to 27,400.18, 37,812.85 and 15,135.56

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Solution

The fourth proportional to 27,400.18, 37,812.85 and 15,135.56 is: 20,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,400.18 : 37,812.85 = 15,135.56 : x
  2. Step 2: Convert to fraction form
    27,400.18/37,812.85 = 15,135.56/x
  3. Step 3: Cross multiply
    27,400.18x = 37,812.85 × 15,135.56
  4. Step 4: Simplify right side
    27,400.18x = 572,318,433.04
  5. Step 5: Solve for x
    x = 572,318,433.04/27,400.18
  6. Step 6: Final answer
    x = 20,887.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.