Home / 27,777.86-38,332.46-15,845.00

Finding the Fourth Proportional to 27,777.86, 38,332.46 and 15,845.00

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Solution

The fourth proportional to 27,777.86, 38,332.46 and 15,845.00 is: 21,865.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,777.86 : 38,332.46 = 15,845.00 : x
  2. Step 2: Convert to fraction form
    27,777.86/38,332.46 = 15,845.00/x
  3. Step 3: Cross multiply
    27,777.86x = 38,332.46 × 15,845.00
  4. Step 4: Simplify right side
    27,777.86x = 607,377,964.14
  5. Step 5: Solve for x
    x = 607,377,964.14/27,777.86
  6. Step 6: Final answer
    x = 21,865.55

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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.