Home / 27,646.53-38,154.05-15,709.89

Finding the Fourth Proportional to 27,646.53, 38,154.05 and 15,709.89

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Solution

The fourth proportional to 27,646.53, 38,154.05 and 15,709.89 is: 21,680.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,646.53 : 38,154.05 = 15,709.89 : x
  2. Step 2: Convert to fraction form
    27,646.53/38,154.05 = 15,709.89/x
  3. Step 3: Cross multiply
    27,646.53x = 38,154.05 × 15,709.89
  4. Step 4: Simplify right side
    27,646.53x = 599,395,850.01
  5. Step 5: Solve for x
    x = 599,395,850.01/27,646.53
  6. Step 6: Final answer
    x = 21,680.69

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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.