Home / 28,284.80-42,426.29-7,224.77

Finding the Fourth Proportional to 28,284.80, 42,426.29 and 7,224.77

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Solution

The fourth proportional to 28,284.80, 42,426.29 and 7,224.77 is: 10,836.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,284.80 : 42,426.29 = 7,224.77 : x
  2. Step 2: Convert to fraction form
    28,284.80/42,426.29 = 7,224.77/x
  3. Step 3: Cross multiply
    28,284.80x = 42,426.29 × 7,224.77
  4. Step 4: Simplify right side
    28,284.80x = 306,519,938.95
  5. Step 5: Solve for x
    x = 306,519,938.95/28,284.80
  6. Step 6: Final answer
    x = 10,836.92

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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.