Home / 27,277.86-37,640.39-15,340.95

Finding the Fourth Proportional to 27,277.86, 37,640.39 and 15,340.95

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Solution

The fourth proportional to 27,277.86, 37,640.39 and 15,340.95 is: 21,168.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,277.86 : 37,640.39 = 15,340.95 : x
  2. Step 2: Convert to fraction form
    27,277.86/37,640.39 = 15,340.95/x
  3. Step 3: Cross multiply
    27,277.86x = 37,640.39 × 15,340.95
  4. Step 4: Simplify right side
    27,277.86x = 577,439,152.77
  5. Step 5: Solve for x
    x = 577,439,152.77/27,277.86
  6. Step 6: Final answer
    x = 21,168.78

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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.