Home / 21,770.56-30,045.86-14,711.41

Finding the Fourth Proportional to 21,770.56, 30,045.86 and 14,711.41

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Solution

The fourth proportional to 21,770.56, 30,045.86 and 14,711.41 is: 20,303.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,770.56 : 30,045.86 = 14,711.41 : x
  2. Step 2: Convert to fraction form
    21,770.56/30,045.86 = 14,711.41/x
  3. Step 3: Cross multiply
    21,770.56x = 30,045.86 × 14,711.41
  4. Step 4: Simplify right side
    21,770.56x = 442,016,965.26
  5. Step 5: Solve for x
    x = 442,016,965.26/21,770.56
  6. Step 6: Final answer
    x = 20,303.43

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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.