Home / 27,716.15-38,248.04-15,140.63

Finding the Fourth Proportional to 27,716.15, 38,248.04 and 15,140.63

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Solution

The fourth proportional to 27,716.15, 38,248.04 and 15,140.63 is: 20,893.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,716.15 : 38,248.04 = 15,140.63 : x
  2. Step 2: Convert to fraction form
    27,716.15/38,248.04 = 15,140.63/x
  3. Step 3: Cross multiply
    27,716.15x = 38,248.04 × 15,140.63
  4. Step 4: Simplify right side
    27,716.15x = 579,099,421.87
  5. Step 5: Solve for x
    x = 579,099,421.87/27,716.15
  6. Step 6: Final answer
    x = 20,893.93

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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.