Home / 28,450.71-42,677.73-8,729.46

Finding the Fourth Proportional to 28,450.71, 42,677.73 and 8,729.46

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Solution

The fourth proportional to 28,450.71, 42,677.73 and 8,729.46 is: 13,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.71 : 42,677.73 = 8,729.46 : x
  2. Step 2: Convert to fraction form
    28,450.71/42,677.73 = 8,729.46/x
  3. Step 3: Cross multiply
    28,450.71x = 42,677.73 × 8,729.46
  4. Step 4: Simplify right side
    28,450.71x = 372,553,536.93
  5. Step 5: Solve for x
    x = 372,553,536.93/28,450.71
  6. Step 6: Final answer
    x = 13,094.70

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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.