Home / 27,777.56-38,332.87-15,840.63

Finding the Fourth Proportional to 27,777.56, 38,332.87 and 15,840.63

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Solution

The fourth proportional to 27,777.56, 38,332.87 and 15,840.63 is: 21,859.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,777.56 : 38,332.87 = 15,840.63 : x
  2. Step 2: Convert to fraction form
    27,777.56/38,332.87 = 15,840.63/x
  3. Step 3: Cross multiply
    27,777.56x = 38,332.87 × 15,840.63
  4. Step 4: Simplify right side
    27,777.56x = 607,216,770.91
  5. Step 5: Solve for x
    x = 607,216,770.91/27,777.56
  6. Step 6: Final answer
    x = 21,859.98

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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.