Home / 19,955.50-29,933.40-8,859.21

Finding the Fourth Proportional to 19,955.50, 29,933.40 and 8,859.21

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Solution

The fourth proportional to 19,955.50, 29,933.40 and 8,859.21 is: 13,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.50 : 29,933.40 = 8,859.21 : x
  2. Step 2: Convert to fraction form
    19,955.50/29,933.40 = 8,859.21/x
  3. Step 3: Cross multiply
    19,955.50x = 29,933.40 × 8,859.21
  4. Step 4: Simplify right side
    19,955.50x = 265,186,126.95
  5. Step 5: Solve for x
    x = 265,186,126.95/19,955.50
  6. Step 6: Final answer
    x = 13,288.87

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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.