Home / 20,859.95-31,249.61-11,597.87

Finding the Fourth Proportional to 20,859.95, 31,249.61 and 11,597.87

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Solution

The fourth proportional to 20,859.95, 31,249.61 and 11,597.87 is: 17,374.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859.95 : 31,249.61 = 11,597.87 : x
  2. Step 2: Convert to fraction form
    20,859.95/31,249.61 = 11,597.87/x
  3. Step 3: Cross multiply
    20,859.95x = 31,249.61 × 11,597.87
  4. Step 4: Simplify right side
    20,859.95x = 362,428,856.34
  5. Step 5: Solve for x
    x = 362,428,856.34/20,859.95
  6. Step 6: Final answer
    x = 17,374.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.