Home / 27,143.10-40,718.70-9,611.53

Finding the Fourth Proportional to 27,143.10, 40,718.70 and 9,611.53

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Solution

The fourth proportional to 27,143.10, 40,718.70 and 9,611.53 is: 14,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,143.10 : 40,718.70 = 9,611.53 : x
  2. Step 2: Convert to fraction form
    27,143.10/40,718.70 = 9,611.53/x
  3. Step 3: Cross multiply
    27,143.10x = 40,718.70 × 9,611.53
  4. Step 4: Simplify right side
    27,143.10x = 391,368,904.81
  5. Step 5: Solve for x
    x = 391,368,904.81/27,143.10
  6. Step 6: Final answer
    x = 14,418.73

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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.