Home / 27,709.54-38,236.89-15,611.02

Finding the Fourth Proportional to 27,709.54, 38,236.89 and 15,611.02

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Solution

The fourth proportional to 27,709.54, 38,236.89 and 15,611.02 is: 21,541.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,709.54 : 38,236.89 = 15,611.02 : x
  2. Step 2: Convert to fraction form
    27,709.54/38,236.89 = 15,611.02/x
  3. Step 3: Cross multiply
    27,709.54x = 38,236.89 × 15,611.02
  4. Step 4: Simplify right side
    27,709.54x = 596,916,854.53
  5. Step 5: Solve for x
    x = 596,916,854.53/27,709.54
  6. Step 6: Final answer
    x = 21,541.93

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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.