Home / 27,711.63-38,211.80-18,743.58

Finding the Fourth Proportional to 27,711.63, 38,211.80 and 18,743.58

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Solution

The fourth proportional to 27,711.63, 38,211.80 and 18,743.58 is: 25,845.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,711.63 : 38,211.80 = 18,743.58 : x
  2. Step 2: Convert to fraction form
    27,711.63/38,211.80 = 18,743.58/x
  3. Step 3: Cross multiply
    27,711.63x = 38,211.80 × 18,743.58
  4. Step 4: Simplify right side
    27,711.63x = 716,225,836.53
  5. Step 5: Solve for x
    x = 716,225,836.53/27,711.63
  6. Step 6: Final answer
    x = 25,845.68

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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.