Home / 28,454.41-42,703.40-12,882.97

Finding the Fourth Proportional to 28,454.41, 42,703.40 and 12,882.97

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Solution

The fourth proportional to 28,454.41, 42,703.40 and 12,882.97 is: 19,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454.41 : 42,703.40 = 12,882.97 : x
  2. Step 2: Convert to fraction form
    28,454.41/42,703.40 = 12,882.97/x
  3. Step 3: Cross multiply
    28,454.41x = 42,703.40 × 12,882.97
  4. Step 4: Simplify right side
    28,454.41x = 550,146,621.10
  5. Step 5: Solve for x
    x = 550,146,621.10/28,454.41
  6. Step 6: Final answer
    x = 19,334.32

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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.