Home / 28,218.94-42,329.31-10,454.05

Finding the Fourth Proportional to 28,218.94, 42,329.31 and 10,454.05

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Solution

The fourth proportional to 28,218.94, 42,329.31 and 10,454.05 is: 15,681.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.94 : 42,329.31 = 10,454.05 : x
  2. Step 2: Convert to fraction form
    28,218.94/42,329.31 = 10,454.05/x
  3. Step 3: Cross multiply
    28,218.94x = 42,329.31 × 10,454.05
  4. Step 4: Simplify right side
    28,218.94x = 442,512,706.79
  5. Step 5: Solve for x
    x = 442,512,706.79/28,218.94
  6. Step 6: Final answer
    x = 15,681.41

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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.