Home / 27,139.66-37,457.16-18,634.72

Finding the Fourth Proportional to 27,139.66, 37,457.16 and 18,634.72

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Solution

The fourth proportional to 27,139.66, 37,457.16 and 18,634.72 is: 25,718.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.66 : 37,457.16 = 18,634.72 : x
  2. Step 2: Convert to fraction form
    27,139.66/37,457.16 = 18,634.72/x
  3. Step 3: Cross multiply
    27,139.66x = 37,457.16 × 18,634.72
  4. Step 4: Simplify right side
    27,139.66x = 698,003,688.60
  5. Step 5: Solve for x
    x = 698,003,688.60/27,139.66
  6. Step 6: Final answer
    x = 25,718.95

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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.