Home / 28,055.85-42,064.34-10,520.97

Finding the Fourth Proportional to 28,055.85, 42,064.34 and 10,520.97

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Solution

The fourth proportional to 28,055.85, 42,064.34 and 10,520.97 is: 15,774.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.85 : 42,064.34 = 10,520.97 : x
  2. Step 2: Convert to fraction form
    28,055.85/42,064.34 = 10,520.97/x
  3. Step 3: Cross multiply
    28,055.85x = 42,064.34 × 10,520.97
  4. Step 4: Simplify right side
    28,055.85x = 442,557,606.60
  5. Step 5: Solve for x
    x = 442,557,606.60/28,055.85
  6. Step 6: Final answer
    x = 15,774.16

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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.