Home / 27,140.99-40,688.13-13,081.71

Finding the Fourth Proportional to 27,140.99, 40,688.13 and 13,081.71

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Solution

The fourth proportional to 27,140.99, 40,688.13 and 13,081.71 is: 19,611.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,140.99 : 40,688.13 = 13,081.71 : x
  2. Step 2: Convert to fraction form
    27,140.99/40,688.13 = 13,081.71/x
  3. Step 3: Cross multiply
    27,140.99x = 40,688.13 × 13,081.71
  4. Step 4: Simplify right side
    27,140.99x = 532,270,317.10
  5. Step 5: Solve for x
    x = 532,270,317.10/27,140.99
  6. Step 6: Final answer
    x = 19,611.31

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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.